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append new row to old csv file python
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258
with open('document.csv','a') as fd:
fd.write(myCsvRow)
Opening a file with the 'a' para...
Laravel Check If Related Model Exists
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202
In php 7.2+ you can't use count on the relation object, so there's no one-fits-all method for ...
Hex representation of a color with alpha channel?
...the use rgba() functional notation with decimals or percentages, e.g. rgba(255, 0, 0, 0.5) would be 50% transparent red. RGB channels are 0-255 or 0%-100%, alpha is 0-1.
In CSS 4*, you can specify the alpha channel using the 7th and 8th characters of an 8 digit hex colour, or 4th character of a 4 d...
Rails: Check output of path helper from console
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429
You can show them with rake routes directly.
In a Rails console, you can call app.post_path. T...
How do you remove the root CA certificate that fiddler installs
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edited Sep 2 at 8:05
Martijn Pieters♦
839k212212 gold badges32203220 silver badges28102810 bronze badges
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Convert an ISO date to the date format yyyy-mm-dd in JavaScript
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Try this
date = new Date('2013-03-10T02:00:00Z');
date.getFullYear()+'-' + (date.getMonth()+1) + '-'+date.getDate();//prints expected format.
Update:-
As pointed out in comments, I am updating the answer to print leading zeros for date and month if...
jQuery UI accordion that keeps multiple sections open?
...e accordion styling.
– forresto
Jun 21 '12 at 10:28
12
Furthermore, this is no solution to the qu...
How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
...ed.)
This question discusses the uses left for a C array like int arr[20]; . On his answer , @James Kanze shows one of the last strongholds of C arrays, it's unique initialization characteristics:
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Docker: adding a file from a parent directory
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231
You can build the Dockerfile from the parent directory:
docker build -t <some tag> -f &...