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How to strip all whitespace from string
...initial timings:
$ python -m timeit '"".join(" \t foo \n bar ".split())'
1000000 loops, best of 3: 1.38 usec per loop
$ python -m timeit -s 'import re' 're.sub(r"\s+", "", " \t foo \n bar ")'
100000 loops, best of 3: 15.6 usec per loop
Note the regex is cached, so it's not as slow as you'd imagin...
How can I create a two dimensional array in JavaScript?
...ay containing 1...N
Alternatively (but more inefficient 12% with n = 10,000)
Array(2).fill(null).map(() => Array(4))
The performance decrease comes with the fact that we have to have the first dimension values initialized to run .map. Remember that Array will not allocate the positions unt...
How to change 'Maximum upload size exceeded' restriction in Shiny and save user file inputs?
...by default (I don't know what the size is exactly, but I'm guessing it's 5,000 KB). I'd like to remove this restriction. How can I do so, and what is there a general rule of thumb for the size of user uploads?
...
Display date/time in user's locale format and time offset
...ar d = new Date();
d = new Date(d.getTime() - d.getTimezoneOffset() * 60000)
var yyyymmdd = t.toISOString().slice(0,0);
// 2017-05-09T08:24:26.581Z (but this is not UTC)
The d.getTimezoneOffset() returns the time zone offset in minutes, and the d.getTime() is in ms, hence the x 60,000.
...
Parse date without timezone javascript
...that converts it to your local timezone:
let s = "2005-07-08T11:22:33+0000";
let d = new Date(Date.parse(s));
// this logs for me
// "Fri Jul 08 2005 13:22:33 GMT+0200 (Central European Summer Time)"
// and something else for you
console.log(d.toString())
// this logs
// Fri, 08...
Is there any good dynamic SQL builder library in Java? [closed]
...cation VM, there is a 64k method reference limit. jOOQ can contain over 10,000 referenced methods when in use. This may not seem like much in comparison to the limit, but if you consider other large libraries commonly used (such as Guava and Google Play Services), hitting that 64k limit becomes much...
What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
...86 ms
static string Method1(int millisecs)
{
int hours = millisecs / 3600000;
int mins = (millisecs % 3600000) / 60000;
// Make sure you use the appropriate decimal separator
return string.Format("{0:D2}:{1:D2}:{2:D2}.{3:D3}", hours, mins, millisecs % 60000 / 1000, millisecs % 1000);...
How to position a table at the center of div horizontally & vertically
...lock;
background: #fff;
padding : 20px;
border : 1px solid #000;
}
<div class="outer-container">
<div class="inner-container">
<div class="centered-content">
<em>Data :</em>
<table>
<tr>
...
Collisions when generating UUIDs in JavaScript?
...parently StackOverflow won't let me.
I just ran a rudimentary test of 100,000 iterations in Chrome using the UUID algorithm you posted and got no collisions. Here's a code snippet:
var createGUID = function() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
...
jQuery get the location of an element relative to window
...
position: fixed;
bottom: 10px;
right: 10px;
border: 1px solid #000;
border-radius: 2px;
padding: 5px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="log"></div>
<div id="element">Hello
<h...