Macbook Tab Key

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Macbook Tab Key

Macbook Tab Key Not Working
Tab Key On Macbook Pro
Mac Tab Key Not Working

Tab key on a standard keyboard (on upper left)

The tab keyTab ↹ (abbreviation of tabulator key^[1] or tabular key)^[2] on a keyboard is used to advance the cursor to the next tab stop.

Jul 07, 2014 Application Tab Key Navigation. There are a few settings to be aware of when using the keyboard on a Mac. There is a Keyboard System Preference to allow full tab key navigation. The setting is in the keyboard pane at the bottom of the shortcuts tab panel. Complete the following procedure to customize keyboard shortcuts for menu items of Receiver for Mac: Open System Preferences on the Macintosh computer. Navigate to Keyboard preference pane and select the Keyboard Shortcuts tab. Select Application Shortcuts. Select + located in the right list box. Select Other from the list for Application. The Mac keyboard shortcut command T will perform the New Tab action. The New Tab keyboard shortcut is only available in applications that support tabs. When available, New Tab is usually located in the File menu. This keyboard shortcut for New Tab is available in Mac OS X and may also be available with other versions of Mac OS. Quickly Minimize Windows in Mac OS X with a Keyboard Shortcut or Double-Click May 21, 2012 - 19 Comments Virtually everyone knows you can click the yellow pill button in the upper left corner of a window to minimize a window in Mac OS X, but there are actually a few other ways minimize windows faster than that.

History[edit]

The tab rack from a Flexowriter model 2201. On this machine, the tab-rack is removable for easy reconfiguration.

The word tab derives from the word tabulate, which means 'to arrange data in a tabular, or table, form.' When a person wanted to type a table (of numbers or text) on a typewriter, there was a lot of time-consuming and repetitive use of the space bar and backspace key. To simplify this, a horizontal bar was placed in the mechanism called the tabulator rack. Pressing the tab key would advance the carriage to the next tabulator stop. The original tabulator stops were adjustable clips that could be arranged by the user on the tabulator rack. Fredric Hillard filed a patent application for such a mechanism in 1900.^[3]

The tab mechanism came into its own as a rapid and consistent way of uniformly indenting the first line of each paragraph. Often a first tab stop at 5 or 6 characters was used for this, far larger than the indentation used when typesetting. For numeric data, however, the logical place for the tab stop is the location of the least significant digit. Tabbing to this location and then pressing the backspace key to back up to the position of the first digit is practical but slow. Various schemes for numeric tabs were proposed. For example, in 1903, Harry Dukes and William Clayton filed for a patent on a tab mechanism with multiple tab keys numbered 1, 10, 100, etc. Pressing 1 was a simple tab. Pressing 10 advanced to the space before the tab, pressing 100 advanced to the position 2 spaces before the tab.^[4]

Initially tab stops were set by adding and removing clips from the tab rack, but Edward Hess working for the Royal Typewriter Company filed for a patent in 1904 covering a system where the tab stops were permanently mounted on the tab bar. To set or reset a tab for a particular column, the tab stop for that column was simply rotated in or out of engagement.^[5] In 1940, James Koca filed for a patent on a mechanism allowing the tab stops for each column to be set and cleared from the keyboard, eliminating the need for the typist to bend over the back of the machine to directly manipulate the tab rack.^[6] These keys, if present, are typically labeled tab set and tab clear.

Modern usage[edit]

In word processing and text editing, the Tab key will move the insertion point to the next tab stop in a table, insert the ASCII tab character, or insert multiple space characters (depending on the program used).

When filling out a computerized form, pressing Tab will sometimes move the cursor to the next field (and Shift-Tab will move the cursor to the previous field), eliminating the need to use a mouse to click in an adjacent field.

In many graphical applications, especially on Windows, the Tab key will move the focus to everycontrol or widget such as buttons so that the user interface can be used without a mouse at all (this was part of the IBM Common User Access design). On macOS, this is an option called 'Full Keyboard Access'.

A feature called tab completion can be used to complete a partially typed piece of text. For example, in some command-line interfaces, you may type the first few characters of a command or file-name, then press Tab. If there is no ambiguity about your intent, the rest of the characters will appear automatically. On some systems, even if your input is ambiguous, tab completion may give you a list of possible options to select from. Tab completion is more common on Linux, Unix, and Unix-like systems than Windows.

In PCvideo games, the Tab key is very often used to show scores in multiplayer games. For single player games it is also used to show the world map or the player's inventory (or some other useful info).

In software engineering, when developing computer programs or storing and manipulating data in files, the Tab character is often used for indentation purposes to help guide the flow of reading and add semantic structure to the code or data. Some programmers and programming languages prefer the usage of multiple whitespace characters instead for that purpose. Because of this, many text editors have an option that makes the tab key insert the number of whitespace characters that a tab character is set to be equivalent to (by default mostly four).

Tab characters[edit]

The most known and common tab is a horizontal tabulation (HT) or character tabulation, which in ASCII has the decimal character code of 9, and may be referred to as Ctrl+I or ^I. In C and many other programming languages the escape code t can be used to put this character into a string constant. The horizontal tab is usually inserted when the Tab key on a standard keyboard is pressed.

A vertical tabulation (VT) also exists and has ASCII decimal character code 11 (Ctrl+K or ^K), escape character v.

Macbook Tab Key Not Working

In EBCDIC the code for HT is 5. VT is 11 (coincidentally the same as in ASCII).

Originally, printer mechanisms used mechanical tab stops to indicate where the tabs went. This was done horizontally with movable metal prongs in a row, and vertically with a loop of mylar or other tape the length of a page with holes punched in it to indicate the tab stops. These were manually set to match the pre-printed forms that were loaded into the printer. In practice, settable tab stops were rather quickly replaced with fixed tab stops, de facto standardized at every multiple of 8 characters horizontally, and every six lines vertically. A printing program could send zero or more tabs to get to the closest tab stop above and left of where it wanted to print, then send line feeds and spaces to get to the final location. Tab characters simply became a form of data compression.

Despite five characters were the typical paragraph indentation on typewriters at that time, the horizontal tab size of eight evolved because as a power of two it was easier to calculate with the limited digital electronics available. Using this size tab to indent code results in much white space on the left, so most text editors for code, such as IDEs, allow the size of the tab to be changed, and some (in particular on Windows) default to four instead of eight. Disagreements between programmers about what size tabs are correct, and whether to use tabs at all, are common^[7]. Modern text editors usually have the Tab key insert the user-defined indentation and may use heuristics to adapt this behavior to existing files.

ISO 6429 includes the codes 136 (Horizontal Tabulation Set), 137 (Horizontal Tabulation with Justification) and 138 (Vertical Tabulation Set) that were intended to allow the program to set and clear tab stops. This is rarely used or supported.

Tab-separated values[edit]

Tab-separated values (TSV) are a common de facto standard^{[citation needed]}^[dubious] for exporting and importing database or spreadsheet field values. Text divided into fields delimited by tabs can often be pasted into a word processor and formatted into a table with a single command. For example, in Microsoft Word 2010, Insert > Table > Convert Text to Table... is the necessary command, producing a dialog where the user selects further details.

The TSV convention for exporting data may be compared to the alternative, more stable comma-separated values (CSV) convention (that may be using semicolons instead of commas), and both are easily converted into each other.

Gopher menus use tab-separated values to indicate selectors.

TSV has also been cited in a modern approach to solving the programming debate regarding the use of tabs and spaces for code alignment called elastic tabstops.^[8] This idea uses a scheme called tab-separated columns (TSC) rather than the similar tab-separated values (TSV).

HTML[edit]

In HTML the horizontal tab is coded using 	 or &tab;^[9]^[10] but as with all whitespace characters in HTML, this will be displayed as a single space except inside <pre>, <code> tags (or other elements with CSS attribute white-space set to pre).

Tab Key On Macbook Pro

Here is an example:

HTML

Inside <pre>

Outside <pre>

This line begins with a single tab.Herearesomemoretabcharacters!T.......T.......T.......T.......T.......T.......T.......T

Notice that the tab at the start of a line is removed outside <pre>, the eight-character spacing, and how a tab stop is skipped if there are more than 8 characters since last one.

CSS3 defines tab-size property, which adjusts the number of spaces for the tab character from the default of eight.^[11] The latest version of WebKit supports the tab-size property. The Opera web browser supports the -o-tab-size CSS property, the Firefox web browser supports the -moz-tab-size CSS property with the same meaning.^[12]

The vertical tab is  but is not allowed in SGML^{[citation needed]}; this includes XML 1.0^[13] and HTML.

Unicode[edit]

The Unicode code points for the (horizontal) tab character, and the more rarely used vertical tab character are copied from ASCII:^[14]

U+0009<control-0009> (CHARACTER TABULATION, horizontal tabulation (HT), tab)
U+000B<control-000B> (LINE TABULATION, vertical tabulation (VT))

The tab characters can be graphically represented by special symbols:

U+2409␉SYMBOL FOR HORIZONTAL TABULATION
U+240B␋SYMBOL FOR VERTICAL TABULATION

Unicode also has characters for the symbols to represent or be printed on the tab key:^[15]

U+21B9↹LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR (tab with shift tab)
U+21C6⇆LEFTWARDS ARROW OVER RIGHTWARDS ARROW
U+21E4⇤LEFTWARDS ARROW TO BAR (leftward tab)
U+21E5⇥RIGHTWARDS ARROW TO BAR (rightward tab)

Mac Tab Key Not Working

Comma-separated values (CSV)

References[edit]

^'Underwood Portable Typewriter Gallery'. Archived from the original on 2011-02-22. Retrieved 2011-04-09.
^'Instructions for Using the Underwood Typewriter'(PDF). Retrieved 2011-04-09.
^Fredric W. Hillard, Type-writing machine, U.S. Patent 720,520 , granted Feb. 10, 1903.
^Harry S. Dukes and William H. Clayton, Tabulating mechanism for type-writing machines, U.S. Patent 908,221 , granted Dec. 29, 1908.
^Edward B. Hess, Writing Machine, U.S. Patent 931,305 , granted Aug. 17. 1909.
^James F. Koca, Typewriter stop mechanism, U.S. Patent 2,358,517 , granted Sep. 19, 1944.
^'Tabs versus Spaces'. www.jwz.org. Retrieved 2020-06-02.
^Gravgaard, Nick. 'Elastic tabstops - a better way to indent and align code'. nickgravgaard.com. Retrieved 23 March 2018.
^See Character encodings in HTML#HTML character references
^'Character Entity Reference Chart'. dev.w3.org. Retrieved 23 March 2018.
^'CSS 3 tab-size property W3 specification'.
^'CSS tab-size property on Mozilla Developer Network'.
^'Extensible Markup Language (XML) 1.0' (5th ed.). W3C. 26 November 2008. sec. 'Charsets'.
^'C0 Controls and Basic Latin'(PDF). Retrieved 2013-12-13.
^'Arrows – Unicode'(PDF). Retrieved 2013-12-13.

External links[edit]

Tabs versus Spaces: An Eternal Holy War by Jamie Zawinski
Why I prefer no tabs in source code by Adam Spiers
Why I love having tabs in source code (archived)

IBM PC keyboard (Windows, ANSI US layout)
Esc	F1	F2	F3	F4	F5	F6	F7	F8	F9	F10	F11	F12	PrtScn/ SysRq	Scroll Lock	Pause/ Break
Insert	Home	PgUp	Num Lock	∕	∗	−
Delete	End	PgDn	7	8	9	+
4	5	6				+
↑	1	2	3	Enter
←	↓	→	0 Ins		. Del

Retrieved from 'https://en.wikipedia.org/w/index.php?title=Tab_key&oldid=971226120'

To use a keyboard shortcut, press and hold one or more modifier keys and then press the last key of the shortcut. For example, to use Command-C (copy), press and hold the Command key, then the C key, then release both keys. Mac menus and keyboards often use symbols for certain keys, including modifier keys:

On keyboards made for Windows PCs, use the Alt key instead of Option, and the Windows logo key instead of Command.

Some keys on some Apple keyboards have special symbols and functions, such as for display brightness , keyboard brightness , Mission Control, and more. If these functions aren't available on your keyboard, you might be able to reproduce some of them by creating your own keyboard shortcuts. To use these keys as F1, F2, F3, or other standard function keys, combine them with the Fn key.

Cut, copy, paste, and other common shortcuts

Command-X: Cut the selected item and copy it to the Clipboard.
Command-C: Copy the selected item to the Clipboard. This also works for files in the Finder.
Command-V: Paste the contents of the Clipboard into the current document or app. This also works for files in the Finder.
Command-Z: Undo the previous command. You can then press Shift-Command-Z to Redo, reversing the undo command. In some apps, you can undo and redo multiple commands.
Command-A: Select All items.
Command-F: Find items in a document or open a Find window.
Command-G: Find Again: Find the next occurrence of the item previously found. To find the previous occurrence, press Shift-Command-G.
Command-H: Hide the windows of the front app. To view the front app but hide all other apps, press Option-Command-H.
Command-M: Minimize the front window to the Dock. To minimize all windows of the front app, press Option-Command-M.
Command-O: Open the selected item, or open a dialog to select a file to open.
Command-P: Print the current document.
Command-S: Save the current document.
Command-T: Open a new tab.
Command-W: Close the front window. To close all windows of the app, press Option-Command-W.
Option-Command-Esc: Force quit an app.
Command–Space bar: Show or hide the Spotlight search field. To perform a Spotlight search from a Finder window, press Command–Option–Space bar. (If you use multiple input sources to type in different languages, these shortcuts change input sources instead of showing Spotlight. Learn how to change a conflicting keyboard shortcut.)
Control–Command–Space bar: Show the Character Viewer, from which you can choose emoji and other symbols.
Control-Command-F: Use the app in full screen, if supported by the app.
Space bar: Use Quick Look to preview the selected item.
Command-Tab: Switch to the next most recently used app among your open apps.
Shift-Command-5: In macOS Mojave or later, take a screenshot or make a screen recording. Or use Shift-Command-3 or Shift-Command-4 for screenshots. Learn more about screenshots.
Shift-Command-N: Create a new folder in the Finder.
Command-Comma (,): Open preferences for the front app.

Sleep, log out, and shut down shortcuts

You might need to press and hold some of these shortcuts for slightly longer than other shortcuts. This helps you to avoid using them unintentionally.

Power button: Press to turn on your Mac or wake it from sleep. Press and hold for 1.5 seconds to put your Mac to sleep.* Continue holding to force your Mac to turn off.
Option–Command–Power button* or Option–Command–Media Eject : Put your Mac to sleep.
Control–Shift–Power button* or Control–Shift–Media Eject : Put your displays to sleep.
Control–Power button* or Control–Media Eject : Display a dialog asking whether you want to restart, sleep, or shut down.
Control–Command–Power button:* Force your Mac to restart, without prompting to save any open and unsaved documents.
Control–Command–Media Eject : Quit all apps, then restart your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.
Control–Option–Command–Power button* or Control–Option–Command–Media Eject : Quit all apps, then shut down your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.
Control-Command-Q: Immediately lock your screen.
Shift-Command-Q: Log out of your macOS user account. You will be asked to confirm. To log out immediately without confirming, press Option-Shift-Command-Q.

* Does not apply to the Touch ID sensor.

Finder and system shortcuts

Command-D: Duplicate the selected files.
Command-E: Eject the selected disk or volume.
Command-F: Start a Spotlight search in the Finder window.
Command-I: Show the Get Info window for a selected file.
Command-R: (1) When an alias is selected in the Finder: show the original file for the selected alias. (2) In some apps, such as Calendar or Safari, refresh or reload the page. (3) In Software Update preferences, check for software updates again.
Shift-Command-C: Open the Computer window.
Shift-Command-D: Open the desktop folder.
Shift-Command-F: Open the Recents window, showing all of the files you viewed or changed recently.
Shift-Command-G: Open a Go to Folder window.
Shift-Command-H: Open the Home folder of the current macOS user account.
Shift-Command-I: Open iCloud Drive.
Shift-Command-K: Open the Network window.
Option-Command-L: Open the Downloads folder.
Shift-Command-N: Create a new folder.
Shift-Command-O: Open the Documents folder.
Shift-Command-P: Show or hide the Preview pane in Finder windows.
Shift-Command-R: Open the AirDrop window.
Shift-Command-T: Show or hide the tab bar in Finder windows.
Control-Shift-Command-T: Add selected Finder item to the Dock (OS X Mavericks or later)
Shift-Command-U: Open the Utilities folder.
Option-Command-D: Show or hide the Dock.
Control-Command-T: Add the selected item to the sidebar (OS X Mavericks or later).
Option-Command-P: Hide or show the path bar in Finder windows.
Option-Command-S: Hide or show the Sidebar in Finder windows.
Command–Slash (/): Hide or show the status bar in Finder windows.
Command-J: Show View Options.
Command-K: Open the Connect to Server window.
Control-Command-A: Make an alias of the selected item.
Command-N: Open a new Finder window.
Option-Command-N: Create a new Smart Folder.
Command-T: Show or hide the tab bar when a single tab is open in the current Finder window.
Option-Command-T: Show or hide the toolbar when a single tab is open in the current Finder window.
Option-Command-V: Move the files in the Clipboard from their original location to the current location.
Command-Y: Use Quick Look to preview the selected files.
Option-Command-Y: View a Quick Look slideshow of the selected files.
Command-1: View the items in the Finder window as icons.
Command-2: View the items in a Finder window as a list.
Command-3: View the items in a Finder window in columns.
Command-4: View the items in a Finder window in a gallery.
Command–Left Bracket ([): Go to the previous folder.
Command–Right Bracket (]): Go to the next folder.
Command–Up Arrow: Open the folder that contains the current folder.
Command–Control–Up Arrow: Open the folder that contains the current folder in a new window.
Command–Down Arrow: Open the selected item.
Right Arrow: Open the selected folder. This works only when in list view.
Left Arrow: Close the selected folder. This works only when in list view.
Command-Delete: Move the selected item to the Trash.
Shift-Command-Delete: Empty the Trash.
Option-Shift-Command-Delete: Empty the Trash without confirmation dialog.
Command–Brightness Down: Turn video mirroring on or off when your Mac is connected to more than one display.
Option–Brightness Up: Open Displays preferences. This works with either Brightness key.
Control–Brightness Up or Control–Brightness Down: Change the brightness of your external display, if supported by your display.
Option–Shift–Brightness Up or Option–Shift–Brightness Down: Adjust the display brightness in smaller steps. Add the Control key to this shortcut to make the adjustment on your external display, if supported by your display.
Option–Mission Control: Open Mission Control preferences.
Command–Mission Control: Show the desktop.
Control–Down Arrow: Show all windows of the front app.
Option–Volume Up: Open Sound preferences. This works with any of the volume keys.
Option–Shift–Volume Up or Option–Shift–Volume Down: Adjust the sound volume in smaller steps.
Option–Keyboard Brightness Up: Open Keyboard preferences. This works with either Keyboard Brightness key.
Option–Shift–Keyboard Brightness Up or Option–Shift–Keyboard Brightness Down: Adjust the keyboard brightness in smaller steps.
Option key while double-clicking: Open the item in a separate window, then close the original window.
Command key while double-clicking: Open a folder in a separate tab or window.
Command key while dragging to another volume: Move the dragged item to the other volume, instead of copying it.
Option key while dragging: Copy the dragged item. The pointer changes while you drag the item.
Option-Command while dragging: Make an alias of the dragged item. The pointer changes while you drag the item.
Option-click a disclosure triangle: Open all folders within the selected folder. This works only when in list view.
Command-click a window title: See the folders that contain the current folder.
Learn how to use Command or Shift to select multiple items in the Finder.
Click the Go menu in the Finder menu bar to see shortcuts for opening many commonly used folders, such as Applications, Documents, Downloads, Utilities, and iCloud Drive.

Document shortcuts

The behavior of these shortcuts may vary with the app you're using.

Command-B: Boldface the selected text, or turn boldfacing on or off.
Command-I: Italicize the selected text, or turn italics on or off.
Command-K: Add a web link.
Command-U: Underline the selected text, or turn underlining on or off.
Command-T: Show or hide the Fonts window.
Command-D: Select the Desktop folder from within an Open dialog or Save dialog.
Control-Command-D: Show or hide the definition of the selected word.
Shift-Command-Colon (:): Display the Spelling and Grammar window.
Command-Semicolon (;): Find misspelled words in the document.
Option-Delete: Delete the word to the left of the insertion point.
Control-H: Delete the character to the left of the insertion point. Or use Delete.
Control-D: Delete the character to the right of the insertion point. Or use Fn-Delete.
Fn-Delete: Forward delete on keyboards that don't have a Forward Delete key. Or use Control-D.
Control-K: Delete the text between the insertion point and the end of the line or paragraph.
Fn–Up Arrow: Page Up: Scroll up one page.
Fn–Down Arrow: Page Down: Scroll down one page.
Fn–Left Arrow: Home: Scroll to the beginning of a document.
Fn–Right Arrow: End: Scroll to the end of a document.
Command–Up Arrow: Move the insertion point to the beginning of the document.
Command–Down Arrow: Move the insertion point to the end of the document.
Command–Left Arrow: Move the insertion point to the beginning of the current line.
Command–Right Arrow: Move the insertion point to the end of the current line.
Option–Left Arrow: Move the insertion point to the beginning of the previous word.
Option–Right Arrow: Move the insertion point to the end of the next word.
Shift–Command–Up Arrow: Select the text between the insertion point and the beginning of the document.
Shift–Command–Down Arrow: Select the text between the insertion point and the end of the document.
Shift–Command–Left Arrow: Select the text between the insertion point and the beginning of the current line.
Shift–Command–Right Arrow: Select the text between the insertion point and the end of the current line.
Shift–Up Arrow: Extend text selection to the nearest character at the same horizontal location on the line above.
Shift–Down Arrow: Extend text selection to the nearest character at the same horizontal location on the line below.
Shift–Left Arrow: Extend text selection one character to the left.
Shift–Right Arrow: Extend text selection one character to the right.
Option–Shift–Up Arrow: Extend text selection to the beginning of the current paragraph, then to the beginning of the following paragraph if pressed again.
Option–Shift–Down Arrow: Extend text selection to the end of the current paragraph, then to the end of the following paragraph if pressed again.
Option–Shift–Left Arrow: Extend text selection to the beginning of the current word, then to the beginning of the following word if pressed again.
Option–Shift–Right Arrow: Extend text selection to the end of the current word, then to the end of the following word if pressed again.
Control-A: Move to the beginning of the line or paragraph.
Control-E: Move to the end of a line or paragraph.
Control-F: Move one character forward.
Control-B: Move one character backward.
Control-L: Center the cursor or selection in the visible area.
Control-P: Move up one line.
Control-N: Move down one line.
Control-O: Insert a new line after the insertion point.
Control-T: Swap the character behind the insertion point with the character in front of the insertion point.
Command–Left Curly Bracket ({): Left align.
Command–Right Curly Bracket (}): Right align.
Shift–Command–Vertical bar ( ): Center align.
Option-Command-F: Go to the search field.
Option-Command-T: Show or hide a toolbar in the app.
Option-Command-C: Copy Style: Copy the formatting settings of the selected item to the Clipboard.
Option-Command-V: Paste Style: Apply the copied style to the selected item.
Option-Shift-Command-V: Paste and Match Style: Apply the style of the surrounding content to the item pasted within that content.
Option-Command-I: Show or hide the inspector window.
Shift-Command-P: Page setup: Display a window for selecting document settings.
Shift-Command-S: Display the Save As dialog, or duplicate the current document.
Shift–Command–Minus sign (-): Decrease the size of the selected item.
Shift–Command–Plus sign (+): Increase the size of the selected item. Command–Equal sign (=) performs the same function.
Shift–Command–Question mark (?): Open the Help menu.

Other shortcuts

For more shortcuts, check the shortcut abbreviations shown in the menus of your apps. Every app can have its own shortcuts, and shortcuts that work in one app might not work in another.

Apple Music shortcuts: Choose Help > Keyboard shortcuts from the menu bar in the Music app.
Other shortcuts: Choose Apple menu > System Preferences, click Keyboard, then click Shortcuts.

Learn more

Create your own shortcuts and resolve conflicts between shortcuts
Change the behavior of the function keys or modifier keys