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Mapping a function on the values of a map in Clojure
...ure.walk/walk #(apply f %) identity m) )
Parellel versions – pmap-map, etc.
There are also parallel versions of these functions if you need them. They simply use pmap instead of map.
(defn pmap-map [f m]
(into (empty m) (pmap #(apply f %) m)) )
(defn pmap-map-keys [f m]
(pmap-map (fn [...
Different bash prompt for different vi editing mode?
...the current editing mode.
So putting
set show-mode-in-prompt on
into /etc/inputrc or ~/.inputrc (thx stooj) should affect all your readline-enabled programs ;)
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How do I delete/remove a shell function?
...e to have functions/aliases like realiases, refunctions, resetopts, reenv, etc to "re-source" respective files, if you've separated/grouped them as such.)
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How to save a PNG image server-side, from a base64 data string
...om the explode, depending on whether it's data:image/jpg or data:image/png etc.
– drew010
Feb 16 '17 at 16:17
i got th...
How do I get the coordinates of a mouse click on a canvas element?
...s a simplification of @Aldekein´s solution but without jQuery.
function getCursorPosition(canvas, event) {
const rect = canvas.getBoundingClientRect()
const x = event.clientX - rect.left
const y = event.clientY - rect.top
console.log("x: " + x + " y: " + y)
}
const canvas = docume...
What's the difference between KeyDown and KeyPress in .NET?
...s of keys that do result in calls to KeyPress:
A through Z, 0 through 9, etc.
Spacebar
Tab (KeyChar='\t', ASCII 9)
Enter (KeyChar='\r', ASCII 13)
Esc (KeyChar='\x1b', ASCII 27)
Backspace (KeyChar='\b', ASCII 8)
For the curious, KeyDown roughly correlates to WM_KEYDOWN, KeyPress to WM_CHAR, and K...
WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]
...der and stuff, so it can be much faster is you don't mind some packet loss etc (i.e. having the latest data is more important than having all the data): stackoverflow.com/a/13051771/993683
– user993683
Apr 8 '17 at 8:49
...
How can I remove all text after a character in bash?
...
In Bash (and ksh, zsh, dash, etc.), you can use parameter expansion with % which will remove characters from the end of the string or # which will remove characters from the beginning of the string. If you use a single one of those characters, the smalle...
iPhone Safari Web App opens links in new window
... working for me on iOS 6.1 and with Bootstrap JS links (i.e dropdown menus etc)
$(document).ready(function(){
if (("standalone" in window.navigator) && window.navigator.standalone) {
// For iOS Apps
$('a').on('click', function(e){
e.preventDefault();
...
JavaScript function similar to Python range()
...am: Thanks for pointing this out. I did not add defensive checks for types etc., but I implemented reverse order of elements - it now works exactly the same as Python counterpart, when the last param is negative integer.
– Tadeck
Nov 25 '11 at 18:59
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