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Drawing a dot on HTML5 canvas [duplicate]
...d it. Just draw a rectangle with a width and height of one:
ctx.fillRect(10,10,1,1); // fill in the pixel at (10,10)
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Transparent ARGB hex value
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205
Transparency is controlled by the alpha channel (AA in #AARRGGBB). Maximal value (255 dec, FF h...
Undoing a 'git push'
...commit:branch_name
or in your case
git push -f origin cc4b63bebb6:alpha-0.3.0
You may have receive.denyNonFastForwards set on the remote repository. If this is the case, then you will get an error which includes the phrase [remote rejected].
In this scenario, you will have to delete and recrea...
RegEx for Javascript to allow only alphanumeric
...
/^[a-z0-9]+$/i
^ Start of string
[a-z0-9] a or b or c or ... z or 0 or 1 or ... 9
+ one or more times (change to * to allow empty string)
$ end of string
/i case-insensitive
Update (supporting ...
OfflineSpeech 拓展：离线语音识别 · App Inventor 2 中文网
... Vosk(Kaldi)。
默认中文小模型开箱即用（vosk-model-small-cn-0.22，zip 约 42MB，Apache 2.0 开源协议）：调用 LoadDefaultModel 即可——本地已有缓存就直接加载；没有就首次联网自动下载并缓存（进度经 ModelProgress 事件提示），之后全程离...
Initializing a struct to 0
...ves less typing), and it is guaranteed to work, all members will be set to 0[Ref 1].
The second is more readable.
The choice depends on user preference or the one which your coding standard mandates.
[Ref 1] Reference C99 Standard 6.7.8.21:
If there are fewer initializers in a brace-e...
Hadoop “Unable to load native-hadoop library for your platform” warning
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230
I assume you're running Hadoop on 64bit CentOS. The reason you saw that warning is the native Ha...
100% width Twitter Bootstrap 3 template
I am a bootstrap newbie and I have a 100% wide template that I want to code with bootstrap. The first column begins at the left corner and I have a Google map the stretches to the rightmost. I thought I could do this with container-fluid class, but that doesn't seem to be available any longer. I h...
How to center align the cells of a UICollectionView?
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80
I think you can achieve the single line look by implementing something like this:
- (UIEdgeInse...
WebSocket客户端使用指导 · App Inventor 2 中文网
...已断开时」里延时几秒再连即可（主动断开时状态码是 1000，不重连）：
when WebSocket客户端1.Disconnected(状态码, 原因) {
if (状态码 != 1000) {
after(3000) {
WebSocket客户端1.Connect()
}
}
}
收发 JSON：服务器发来的多是 JSON 文...