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What is your single most favorite command-line trick using Bash? [closed]
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My favorite is '^string^string2' which takes the last command, replaces string with string2 and executes it
$ ehco foo bar baz
bash: ehco: command not found
$ ^ehco^echo
foo bar baz
Bash command line history guide
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Designing function f(f(n)) == -n
...oof of why such a function can't exist, for all numbers, if it doesn't use extra information(except 32bits of int):
We must have f(0) = 0. (Proof: Suppose f(0) = x. Then f(x) = f(f(0)) = -0 = 0. Now, -x = f(f(x)) = f(0) = x, which means that x = 0.)
Further, for any x and y, suppose f(x) = y. We w...
Convert base64 string to ArrayBuffer
I need to convert a base64 encode string into an ArrayBuffer.
The base64 strings are user input, they will be copy and pasted from an email, so they're not there when the page is loaded.
I would like to do this in javascript without making an ajax call to the server if possible.
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Best way to allow plugins for a PHP application
...te that when using multiple hooks/listeners, you should only return either strings or arrays, not both. I have implemented something similar for Hound CMS - getbutterfly.com/hound.
– Ciprian
Dec 19 '17 at 11:21
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What is the quickest way to HTTP GET in Python?
... is the quickest way to HTTP GET in Python if I know the content will be a string? I am searching the documentation for a quick one-liner like:
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Is 1.0 a valid output from std::generate_canonical?
...curs quite often in real-world calculations) when x is close to zero. The "extra precision" near multiples of π is generally just a side effect of that.
– Ilmari Karonen
Sep 4 '14 at 20:16
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Is there a way to access method arguments in Ruby?
...o get it to work, otherwise you get a TypeError: can't convert Symbol into String
– Javid Jamae
Oct 11 '12 at 3:03
5
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jQuery callback on image load (even when the image is cached)
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/**
* Trigger a callback when the selected images are loaded:
* @param {String} selector
* @param {Function} callback
*/
var onImgLoad = function(selector, callback){
$(selector).each(function(){
if (this.complete || /*for IE 10-*/ $(this).height() > 0) {
callback.ap...
How to go about formatting 1200 to 1.2k in java
...and was more difficult to read.
private static final NavigableMap<Long, String> suffixes = new TreeMap<> ();
static {
suffixes.put(1_000L, "k");
suffixes.put(1_000_000L, "M");
suffixes.put(1_000_000_000L, "G");
suffixes.put(1_000_000_000_000L, "T");
suffixes.put(1_000_000_000_0...
Align two inline-blocks left and right on same line
...:after part and justified the content.
In order to solve the issue of the extra space that is inserted with the after pseudo-element one can do a trick of setting the font-size to 0 for the parent element and resetting it back to say 14px for the child elements. The working example of this trick ca...