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Truncate a list to a given number of elements
What method truncates a list--for example to the first 100 elements--discarding the others (without iterating through individual elements)?
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reformat in vim for a nice column layout
...t the macro for all remaining lines.
Copy/pasted from that answer:
qa0f:w100i <Esc>19|dwjq4@a
Note the single space after the 100i, and the <Esc> means "press escape"--don't type "<Esc>" literally.
Translation:
qa -- record macro in hotkey a
0 -- go to beginn...
图片工具箱：获取图片大小、裁剪、压缩、旋转、加水印（附 .aia 源码） · ...
....Picture = 图片处理1.Crop(图, round(宽 * 文本输入框_左.Text / 100), round(高 * 文本输入框_上.Text / 100), round(宽 * 文本输入框_宽.Text / 100), round(高 * 文本输入框_高.Text / 100))
}
上传前压缩
when 按钮_压缩.Click() {
var 压缩...
Is there a reason that we cannot iterate on “reverse Range” in ruby?
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100
A range is just that: something defined by its start and end, not by its contents. "Iterating"...
Changing UIButton text
... Swift 3.0
let button = UIButton(type: .system)
button.frame = CGRect(x: 100, y: 100, width: 100, height: 100)
button.setTitle("set here", for: .normal)
button.addTarget(self, action: #selector(TableViewController.actionButtonTocuh), for: .touchUpInside)
button.titleLabel?.textColor = #colorLiter...
Random date in C#
... I'm just hoping that nobody is going to use it as: for (int i = 0; i < 100; i++) { array[i].DateProp = RandomDayFunc()(); }
– Aidiakapi
Mar 29 '14 at 11:54
2
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How to generate random number in Bash?
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You can also use shuf (available in coreutils).
shuf -i 1-100000 -n 1
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How can I write text on a HTML5 canvas element?
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assume:your canvas width-200, height:100 horizontal: ctx.textAlign = 'center' ctx.fillText('Hello', 100, 10) vertical: ctx.textBaseline = 'middle' ctx.fillText('Hello', 10, 50)
– tomision
Aug 18 '16 at 6:30
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App Inventor 2 网络摄像头调用教程 - 通过API查看实时监控画面 · App Inventor 2 中文网
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积木块代码
global 摄像头IP = "192.168.1.100"
global 摄像头端口 = "8080"
global 快照URL = join("http://", 摄像头IP, ":", 摄像头端口, "/snapshot.jpg")
global 刷新间隔 = 1000 // 1秒刷新
when 按钮_开始监控.Click() {
计时器_刷新.Timer...
Maximum size of an Array in Javascript
...d of the array).
For example:
var container = new Array ();
var maxlen = 100;
var index = 0;
// 'store' 1538 items (only the last 'maxlen' items are kept)
for (var i=0; i<1538; i++) {
container [index++ % maxlen] = "storing" + i;
}
// get element at index 11 (you want the 11th item in the ...