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-circuit" principle, such as the first expression in is not to deal with the second expression, and | Just the opposite.JS also follows the above principles. But what's more interesting is the value they return.Code: var attr = True 4 "AAA";Then the result of the run attr is not simple true or false, but "AAA"Take another look at | | ：Code: var attr = attr | | ""; This operation is often used to determine whether a variable is defined, and if it is not defined, give him an initial value, whic

within the entire page size. avoid or reduce server redundancy transfers : You can solve this problem with Ajax solutions. Find the problem It may be tedious to handle the Web sites/Web pages listed in the table above, but there are free web tools to help you find these problems. These tools work with Web pages (through URLs) and determine the size of the entire page, as well as elements such as objects and images used in the Web page. This information is useful when deciding how to impr

FCKeditor's streamlining and use of the network has a lot of information, but the introduction of incomplete or not enough detail. May be my folly, anyway, when I first use FCKeditor, there is this feeling, so this time I try to first use FCKeditor friend through my introduction to this article can be smooth operation. First, Streamline: 1. Delete the _samples folder and the. txt file and the. pl file in the FCKeditor folder. 1.1. In fact, as long as

(). Since the JQuery 1.7 release, ON () attaches the preferred method of the event handler. However, for consistency reasons, you can simply use the on () method entirely. Copy Code code as follows: Bad $first. Click (function () { $first. CSS (' border ', ' 1px solid red '); $first. CSS (' Color ', ' blue '); }); $first. Hover (function () {$first. CSS (' border ', ' 1px solid red ');}) Copy Code code as follows: Suggestions $first. On ('

are based on String.prototype extensions: The reason is that there is a netizen and I discuss two functions, One is isdatetime (judging whether the character is in line with YYYY-MM-DD hh:mm:ss date format) The other is the left function, similar to the mixed interception of English characters in the left implementation of VBScript. He used loops for all two functions, used more than n if statements, each with more than 40 lines of code, and asked me if there was any good way to

installation, the software defaults to the list of applications that are currently running in the background, and each item is later annotated with the amount of memory consumed. Streamline built-in applications I believe Android users have made a qualitative leap in fluency by constantly replacing ROM and brush cores, if your phone is already smoother and more power-saving than the iphone, then we can stop and if you're not satisfied, we have othe

article assumes you have a solid grasp of HTML and CSS, and a basic understanding of JavaScript and Ajax programming techniques. The sample application is built using client code only; The techniques demonstrated in this article apply to any server-side application framework. For all Ajax applications, you must run the sample code from a WEB server rather than from a file on your desktop. In addition, you can only follow the source code on my Web server to see how the sample site works. Recall

it. In combination with the Paper pencer launched by tythree, the experience is awesome.Adobe Ideas This is a great APP for inspiration. It can flexibly control vector materials, layers, and color themes, and design works can be output to AI for later processing.Free icon material The Noun Project The icon material is worth the money. Thousands of icons are derived from different artists, some of which are free and some are charged.80 mini icons This is a simple and clear collection of small

at the bottom of the document causes the browser to block content from being rendered progressively Use the link tag to place the style sheet in the document head Rule 6: Place the script at the bottom Placing the script in the lower part of the page means that more content can be progressively rendered Parallel download Worst case scenario: put the script at the top and the script blocks the download of the content/component behind it Move the script to the bottom

: JS | | And features help us streamline the code while also bringing down the readability of the code. This needs to be weighed on our own.On the one hand, the simplification of JS code, can substantially reduce network traffic, especially a large number of applications JS Common library. Personally, it is recommended that if it is a relatively complex application, please write some comments appropriately. This is the same as being an expression, ab