4 functions for JavaScript letter case Conversion _javascript Tips

JS in the implementation of the letter case conversion is mainly used in four JS functions: 1.toLocaleUpperCase2.toUpperCase3.toLocaleLowerCase4.toLowerCase The following is a simple analysis of these four JS functions for case conversion.

JavaScript format Date-time methods and custom formatting functions examples _javascript tips

Many times, we can use the built-in methods of the Date object in JavaScript to format it, such as: Copy Code code as follows: var d = new Date (); Console.log (d); Output: Mon Nov 2013 21:50:33 gmt+0800 (China Standard Time)

JavaScript move out node RemoveChild () use introduction _javascript tips

RemoveChild (a) is used to remove an existing element from a document Parameter A: The node to move out Copy Code code as follows: 1 2 3 var odiv = document.getElementById ("Guodiv"); var firschild = Odiv.firstelementchild? ODiv.

JavaScript numeric array ordering sample sharing _javascript Tips

However, we find the problem in use, where the array ordering method is not sorted according to the size of the figure we imagined, but rather the original data was changed according to the string test results. That's not what we want. So how do we

_javascript tips for reading and saving file instances in JavaScript

Saying today is just a cursory glance at the source of proxy switchysharp, it has harvested a lot of things, including this article to introduce the reading and saving files.Because Google does not yet provide the ability to sync plug-in data,

7 ways to create multiple-line strings for JavaScript _javascript tips

JS there is no standard multi-line string representation method, but in the template, in order to ensure the readability of the template, we will inevitably use multi-line strings, so there are a variety of way, here with a jade template as an

The slice, Substring, substr functions of JavaScript intercepting strings and comparing _javascript techniques

In JavaScript, extracting substrings is mainly done through Slice, Substring, Substr, one of three methods. Copy Code code as follows: Slice Syntax: String.slice (start [, stop]) "Good news, everyone!." Slice (5,9); ' News '

Three ways JavaScript converts floating-point numbers to integers _javascript tips

Summary For the time being, I thought of 3 methods. If readers think of other useful methods, they can also communicate parseintBitwise operatorsMath.floor Math.ceil Description First, parseint 1. Examples parseint

Deep understanding of the dependency injection _javascript techniques in JavaScript

Sooner or later you will need to use the abstract results of other developers-that is, you rely on someone else's code. I prefer modules that depend on freedom (no dependencies), but that's hard to achieve. Even the beautiful black box components

JavaScript anonymous function Application example introduction to _javascript Tips

JavaScript anonymous function, which means that a function does not have a name, let's list the test code Copy Code code as follows: /* * Commonly common functions are like this */ function Debug (data) { Console.log (data);

Native JavaScript imitates win8 wait for hint Circle progress bar _javascript Tips

I. Preamble I've always liked it. Win8 wait for the prompt Circle progress bar. Win8 just come out that will, feel good magic! There was no thought at the time, not to study. Through the recent online look for information, finally to get out! First

Javascript implementation Copy (copy) action method Daquan _javascript techniques

One, the realization clicks the button, duplicates the content in the text box user-defined code area Second, copy the topic address and URL address, passed to qq/msn friend js Copy code Third, direct copy URL

3 Examples of JavaScript ordering JSON data _javascript tips

One, suitable for numerical sorting and subtitle sortingThere are a number of ways to sort JSON, which is one of the simplest. Copy Code code as follows: var sortby = function (filed, rev, primer) { Rev = (rev)? -1:1; return function (A,

JavaScript event bubbling details and trapping, blocking methods _javascript tips

I. Sequence of occurrences The origin of this problem is very simple, assuming you have another element nested within one element Copy Code code as follows: ----------------------------------- | element1 | | ----------------------

Example of adding and removing object properties in JavaScript _javascript tips

Copy Code code as follows: insert title here

A workaround for floating-point number multiplication in JavaScript _javascript tips

Multiplying floating-point numbers in JavaScript is a fun thing to do. There are many ways to multiply floating-point numbers, and here's a solution that I think is good for me: Copy Code code as follows: function fxf (f1, F2) { F1 + = ';

JavaScript double exclamation mark (!!) Action Sample Introduction to _javascript Tips

Often see examples of this: Copy Code code as follows: var A; var b=!! A A default is undefined.!a is true,!! A is false, so the value of B is false, not undefined, and not other values, primarily for subsequent judgment. !

JavaScript handles null and NULL values sample _javascript Tips

Copy Code code as follows: function Dealnull (obj) { for (var i in obj) { if (null = = Obj[i] | | ' null ' = = Obj[i]) { Obj[i]= '; }else if (' object ' = = typeof Obj[i]) { Dealnull (Obj[i]); } } }; The object of the test var a={};

JavaScript write asynchronous Load JS file function (support array parameter) _javascript tips

own use of loading JS files, supporting multiple files, incompatible IE Copy Code code as follows: /** * Load JS file * @param {string | | | | array} URL JS path * @param {Function} fn load Complete callback * @return {Object} game

JavaScript for array Append method summary _javascript Tips

JavaScript to add elements to the array is a very simple question, JavaScript itself provides a large number of such functions, we can use the JS function to quickly add elements to the array, this article on JavaScript to do array Append method to

Total Pages: 5379 1 .... 287 288 289 290 291 .... 5379 Go to: GO

Alibaba Cloud 10 Year Anniversary

With You, We are Shaping a Digital World, 2009-2019

Learn more >

Apsara Conference 2019

The Rise of Data Intelligence, September 25th - 27th, Hangzhou, China

Learn more >

Alibaba Cloud Free Trial

Learn and experience the power of Alibaba Cloud with a free trial worth $300-1200 USD

Learn more >

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.