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jQuery counting elements by class - what is the best way to implement this?
...ipt:
var numItems = $('.class').length;
alert(numItems);
Fiddle demo for inside only div
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CSS disable text selection
...ne;
}
Now, every element inside a div with id div will have no selection.
Demo
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How is the 'use strict' statement interpreted in Node.js? [duplicate]
I have started to explore the Node.js and wrote many demo web application, to understand the flow of Node.js, Express.js, jade, etc..
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Volatile Vs Atomic [duplicate]
...before by thread A, because it was just in the middle of calculating i + 1 based on the old value, and then set i again to that old value + 1. Explanation:
Assume i = 0
Thread A reads i, calculates i+1, which is 1
Thread B sets i to 1000 and returns
Thread A now sets i to the result of the operatio...
Can you resolve an angularjs promise before you return it?
... This answer also applies to Kris Kowal's Q which Angular's promises are based on.
– Keith
Feb 24 '15 at 20:17
I add...
Can Vim highlight matching HTML tags like Notepad++?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Hashing a file in Python
...lly arbitrary, change for your app!
BUF_SIZE = 65536 # lets read stuff in 64kb chunks!
md5 = hashlib.md5()
sha1 = hashlib.sha1()
with open(sys.argv[1], 'rb') as f:
while True:
data = f.read(BUF_SIZE)
if not data:
break
md5.update(data)
sha1.update(d...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...，设备被扫描后直接连接即可通信。
蓝牙App开发示例
demo参考界面如下：
扫描蓝牙设备，代码如下：
扫描完成后，设备列表展示到“列表显示框”组件中：
点击列表中的目标设备（一般硬件文档会有说明，名称会有...
Cross-reference (named anchor) in markdown
... the Table of Contents extension which can auto-generate links and anchors based on the document headers. The TOC extension is documented here: pythonhosted.org/Markdown/extensions/toc.html Add the text "[TOC]" to the beginning of the document for it to be generated.
– Binary...
Encode html entities in javascript
.../ (this example uses jQuery for element selectors used in the example. The base code itself, above, does not use jQuery)
Making these conversions does not solve all the problems -- make sure you're using UTF8 character encoding, make sure your database is storing the strings in UTF8. You still may ...