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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
I have been reading a lot of Javascript lately and I have been noticing that the whole file is wrapped like the following in the .js files to be imported.
...
What is the difference D3 datum vs. data?
...2px solid #cf58e4;
}
.b {
border-bottom: 2px solid #42e4e4;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.6.0/d3.min.js"></script>
<div style="margin-bottom: 20px;">
<span class="l l-a"></span> .datum() <br />
<span class="l l-b...
How to get the containing form of an input?
...ttribute that points to the form they belong to:
var form = element.form;
alert($(form).attr('name'));
According to w3schools, the .form property of input fields is supported by IE 4.0+, Firefox 1.0+, Opera 9.0+, which is even more browsers that jQuery guarantees, so you should stick to this.
If...
How can I check if string contains characters & whitespace, not just whitespace?
...the string against this regex:
if(mystring.match(/^\s+$/) === null) {
alert("String is good");
} else {
alert("String contains only whitespace");
}
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How to keep a Python script output window open?
I have just started with Python. When I execute a python script file on Windows, the output window appears but instantaneously goes away. I need it to stay there so I can analyze my output. How can I keep it open?
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...性能高和效率快等特点。Squid是一个由众多在互联网上的开发人员共同努力完成的高性能的代理缓冲服务器，它的具体开发是由国家网络应用研究室（the National Laboratory for Applied Network Research）的Duane Wessels主持，由NSF出资支持的...
How to dynamically create CSS class in JavaScript and apply?
...thout dependencies on CSS files. In my case I want lightweight growl-style alert popups out-of-the-box.
– xeolabs
Aug 12 '13 at 7:24
1
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Multiple INSERT statements vs. single INSERT with multiple VALUES
...minimal.
I thought I'd look into this a bit more though so set up a loop (script) and tried adjusting the number of VALUES clauses and recording the compile time.
I then divided the compile time by the number of rows to get the average compile time per clause. The results are below
Up until 250...
Using Custom Domains With IIS Express
... domain. I get past that but all resources then fail to load so no images, scripts or CSS.
– Prime By Design
Aug 12 '18 at 8:32
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What algorithm does Readability use for extracting text from URLs?
...
readability is a javascript bookmarklet. meaning its client side code that manipulates the DOM. Look at the javascript and you should be able to see whats going on.
Readability's workflow and code:
/*
* 1. Prep the document by removing s...