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Random date in C#
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edited Jan 13 '16 at 23:10
Jeremy Thompson
49.5k1919 gold badges141141 silver badges245245 bronze badges
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Capistrano error tar: This does not look like a tar archive
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answered May 29 '14 at 15:09
kubbingkubbing
6,80044 gold badges2020 silver badges1717 bronze badges
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do { … } while (0) — what is it good for? [duplicate]
I've been seeing that expression for over 10 years now. I've been trying to think what it's good for. Since I see it mostly in #defines, I assume it's good for inner scope variable declaration and for using breaks (instead of gotos.)
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Replacing column values in a pandas DataFrame
... something like this:
w['female'] = w['female'].map({'female': 1, 'male': 0})
(Here I convert the values to numbers instead of strings containing numbers. You can convert them to "1" and "0", if you really want, but I'm not sure why you'd want that.)
The reason your code doesn't work is because...
How can I pad a value with leading zeros?
...n for you, don't use this solution!
Potentially outdated: ECMAScript 2017 includes String.prototype.padStart and Number.prototype.toLocaleString is there since ECMAScript 3.1. Example:
var n=-0.1;
n.toLocaleString('en', {minimumIntegerDigits:4,minimumFractionDigits:2,useGrouping:false})
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How to find the size of localStorage
...xecute this snippet in JavaScript console (one line version):
var _lsTotal=0,_xLen,_x;for(_x in localStorage){ if(!localStorage.hasOwnProperty(_x)){continue;} _xLen= ((localStorage[_x].length + _x.length)* 2);_lsTotal+=_xLen; console.log(_x.substr(0,50)+" = "+ (_xLen/1024).toFixed(2)+" KB")};console...
Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
...rayBuffer(buf.length);
var view = new Uint8Array(ab);
for (var i = 0; i < buf.length; ++i) {
view[i] = buf[i];
}
return ab;
}
From ArrayBuffer to Buffer:
function toBuffer(ab) {
var buf = Buffer.alloc(ab.byteLength);
var view = new Uint8Array(ab);
for (var i...
Format date and time in a Windows batch script
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150
I ended up with this script:
set hour=%time:~0,2%
if "%hour:~0,1%" == " " set hour=0%hour:~1,1%...
Python, remove all non-alphabet chars from string
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answered Mar 20 '14 at 0:36
limasxgoesto0limasxgoesto0
3,47344 gold badges2424 silver badges3636 bronze badges
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autolayout - make height of view relative to half superview height
...ttribute inspector:
Then you can adjust the multiplier. If you want it 50% of the super view leave it at 1, since it is aligned per the super's center. This is also a great way to create views that are other percentages too (like 25% of super view)
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