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Set select option 'selected', by value
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28 Answers
28
Active
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Delete column from SQLite table
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206
From: http://www.sqlite.org/faq.html:
(11) How do I add or delete columns from an existing...
Chrome Extension Message passing: response not sent
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rsanchezrsanchez
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Canvas width and height in HTML5
...lurry pixelated zoom-in
// with each canvas pixel drawn showing as roughly 2x2 on screen
canvas.width = 400;
canvas.height = 300;
canvas.style.width = '800px';
canvas.style.height = '600px';
See this live example of a canvas that is zoomed in by 4x.
var c = document.getElementsByTagName('c...
django urls without a trailing slash do not redirect
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answered Oct 20 '09 at 18:49
JiaaroJiaaro
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Arduino 101 实验12 - 录音与回放 · App Inventor 2 中文网
...生成 App 鸿蒙 · 一套积木，多端原生打包！ 下载 AI2伴侣 · 安卓/鸿蒙/iOS aia 源码商店 中文社区 中文教育版 各版本对比 关于 关于我们 发布日志 服务条款 ...
You have already activated X, but your Gemfile requires Y
...to do this.
Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get any warning when simply using rake.
Yehuda Katz (one of t...
Check if value already exists within list of dictionaries?
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273
Here's one way to do it:
if not any(d['main_color'] == 'red' for d in a):
# does not exist...
Django optional url parameters
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edited Apr 16 '19 at 21:45
l0b0
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answe...