Merge c5b4f01dd3 into 559d03ecf3

updates vscode cheat sheet

frontend/html5.html

@@ -185,7 +185,6 @@ width=""                                          <!-- Describes the width of th
 <!-- Some other useful tags -->
 
 <canvas></canvas>                                 <!-- Allows to draw 2D shapes on the web page with the help of javascript -->
-<keygen>                                          <!-- Represents a control for generating a public-private key pair -->
 <map></map>                                       <!-- Specifies an image map -->
 
 <!-- Collective Character Obejcts -->

languages/bash.sh

@@ -232,10 +232,10 @@ declare -l                   # uppercase values in the variable are converted to
 declare -A                   # makes it an associative array
 
 ${varname:-word}             # if varname exists and isn't null, return its value; otherwise return word
-${varname:word}              # if varname exists and isn't null, return its value; otherwise return word
 ${varname:=word}             # if varname exists and isn't null, return its value; otherwise set it word and then return its value
 ${varname:?message}          # if varname exists and isn't null, return its value; otherwise print varname, followed by message and abort the current command or script
 ${varname:+word}             # if varname exists and isn't null, return word; otherwise return null
+${varname:offset}            # performs substring expansion. It returns the substring of $varname starting at offset to the end
 ${varname:offset:length}     # performs substring expansion. It returns the substring of $varname starting at offset and up to length characters
 
 ${variable#pattern}          # if the pattern matches the beginning of the variable's value, delete the shortest part that matches and return the rest

tools/vim.txt

@@ -105,7 +105,7 @@ gu$                 make lowercase until end of line
 <<                  indent line one column to left
 ==                  auto-indent current line
 ddp                 swap current line with next
-ddkp                swap current line with previous
+ddkP                swap current line with previous
 :%retab             fix spaces / tabs issues in whole file
 :r [name]           insert the file [name] below the cursor.
 :r !{cmd}           execute {cmd} and insert its standard output below the cursor.

tools/vscode.md

@@ -6,7 +6,8 @@
 
 #### General
 
-- `Ctrl`+`Shift`+`P`, `F1`:  Show Command Palette
+- `Ctrl`+`Shift`+`P`, `F1`: Show Command Palette
+- `Ctrl`+`Shift`+`T`: Open last closed tab
 - `Ctrl`+`P`: Quick Open, Go to File
 - `Ctrl`+`Shift`+`N`: New window/instance
 - `Ctrl`+`W`: Close window/instance
@@ -19,7 +20,7 @@
 - `Ctrl`+`C`: Copy line (empty selection)
 - `Ctrl`+`↓/↑`: Move line down / up
 - `Ctrl`+`Shift`+`K`: Delete line
-- `Ctrl`+`Enter` / `Ctrl`+`Shift`+`Enter`: Insert line below / above 
+- `Ctrl`+`Enter` / `Ctrl`+`Shift`+`Enter`: Insert line below / above
 - `Ctrl`+`Shift`+`\`: Jump to matching bracket
 - `Ctrl`+`]` / `Ctrl`+`[`: Indent / Outdent line
 - `Ctrl`+`Home` / `End`: Go to beginning / end of file
@@ -136,7 +137,7 @@
 
 - [`Wrap Console Log`](https://marketplace.visualstudio.com/items?itemName=midnightsyntax.vscode-wrap-console-log): Wrap to console.log by word or selection.
 
-- [`Bracket Pair Colorizer`](https://marketplace.visualstudio.com/items?itemName=CoenraadS.bracket-pair-colorizer): Allows matching brackets to be identified with colours. 
+- [`Bracket Pair Colorizer`](https://marketplace.visualstudio.com/items?itemName=CoenraadS.bracket-pair-colorizer): Allows matching brackets to be identified with colours.
 
 ## My Settings