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How to Deep clone in javascript
...first, a code example which clones object literals, any primitives, arrays and DOM nodes.
function clone(item) {
if (!item) { return item; } // null, undefined values check
var types = [ Number, String, Boolean ],
result;
// normalizing primitives if someone did new String('a...
How to get request URI without context path?
...ere a reason to use this instead of getServletPath()? I'm writing a filter and I noticed that getPathInfo() returns null, but getServletPath() returns the path minus the context (suitable for passing on to the request dispatcher).
– Jason C
Jun 25 '17 at 23:00
...
How do I remove a single file from the staging area (undo git add)?
...ith files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ."
...
Why can I initialize a List like an array in C#?
...method named Add(...)
What happens is the default constructor is called, and then Add(...) is called for each member of the initializer.
Thus, these two blocks are roughly identical:
List<int> a = new List<int> { 1, 2, 3 };
And
List<int> temp = new List<int>();
temp.Ad...
How to make pipes work with Runtime.exec()?
...
Write a script, and execute the script instead of separate commands.
Pipe is a part of the shell, so you can also do something like this:
String[] cmd = {
"/bin/sh",
"-c",
"ls /etc | grep release"
};
Process p = Runtime.getRuntime().exec(...
API to automatically upload apk to Google Play? [closed]
...t allows you to upload to any channel (ie. alpha, beta...) or update title and description and more.
From the docs:
Uploading new versions of an app Releasing apps, by assigning APKs to various Tracks (alpha, beta, staged rollout, or production)
Creating and modifying Google Play Store li...
Is there an equivalent to background-size: cover and contain for image elements?
I have a site with many pages and different background pictures, and I display them from CSS like:
14 Answers
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App Inventor 2 与 Mixly（米思齐）MixIO 平台数据通信方案完整调研 - 创客...
.../gitee.com/mixly2/mixio- App Inventor 2 中文网：https://www.fun123.cn- 清泛IT社区（技术交流）：https://bbs.tsingfun.com本文由 App Inventor 2 中文网团队整理，转载请注明出处。
Use tab to indent in textarea
... }
});
jQuery: How to capture the TAB keypress within a Textbox
How to handle <tab> in textarea?
http://jsfiddle.net/jz6J5/
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BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
文章源自：https://www.gandalf.site/2018/11/ble.html
0x1 BLE概述“蓝牙”，即Bluetooth，是斯堪的纳维亚语中 Blåtand / Blåtann 的英化版本。该词是十世纪的一位国王Harald Bluetooth的绰号，相传他将纷争不断的丹麦部落统一为一个王国，并引...