ajax settimeout

The settimeoutjquery selector solution is not supported in setTimeout. Today, when I wrote a js latency event, I found that the $ (this) of jquery In the setTimeout method did not work. Various tests, the final conclusion is that the setTimeout does not support jquery selector. So I consulted a professional on jquery development on QQ and immediately solved the p

In Javascript, the first parameter received by setTimeout and setInterval is a string or a function. When setTimeout is used to call the method of this object in an object Copy codeThe Code is as follows: function obj (){ This. fn = function (){ Alert ("OK "); Console. log (this ); SetTimeout (this. fn, 1000); // use this to reference the current object directly.

When using JScript, we sometimes need to execute a method at intervals, for example, to generate webpage UI animation effects. This is often the setinterval or setTimeout method, but since these two methods are the timer threads simulated by the Script Host, our method through which we call cannot pass parameters for them.Our common application scenarios are:Code:Window. setTimeout ("delayrun ()", N );Windo

implement JavaScript after a fixed time period. But each has its own application scenario.MethodIn fact, settimeout and setinterval have the same syntax. They all have two parameters, one is the code string to execute, and one is the time interval in milliseconds, and the code executes after that time period.However, the two functions are still different, setinterval after the execution of the code, after the fixed time interval, it will also automat

Script> for(varI=0; I2; I++) {setTimeout (function() {console.log (i); },0); } Script>Results: 2,2Print two 2 instead of 0, 1, which is related to the JS execution sequence.There are two types of tasks, one synchronization task and one asynchronous task. A synchronization task is a task that is queued on the main thread. An asynchronous task is a task that goes into the task queue without entering the main thread, and only the task queue notifi

In JavaScript, settimeout and setinterval receive the first argument is a string or a function, when the object's method is called with settimeout delay in an object Copy Code code as follows: function obj () { This.fn = function () { Alert ("OK"); Console.log (this); SetTimeout (This.fn, 1000);//Use this to refer to the current object dir

In the last development, I encountered the problem of setTimeout parameter passing in IE. in IE, setTimeout does not pass in parameters. For example, the following code does not pass in a in IE, two Parameters of BSetTimeout (function (a, B ){Alert (a + B );}, 1000, 'Hello, ', 'World! ');In actual projects, we need to input the setTimeout function as the paramete

1. The SetTimeout () method is used to call a function or evaluate an expression after a specified number of milliseconds;If you need to execute multiple times, you call SetTimeout () again;Example: an infinite loop with a stop buttonHTML>Head>Scripttype= "Text/javascript">varC=0varTfunctionTimedcount () {document.getElementById ('txt'). Value=cc=C+1T=SetTimeout

Whether it is window. setTimeout or window. setInterval, parameters cannot be included when the function name is used as the call handle. If you want to pass in parameters, custom parameters, or event parameters, the solution is to encapsulate them on the basis of this function. The specific principle is unclear... SyntaxHighlighter. Whether it is window. setTimeout or window. setInterval, parameters cannot

Reprinted: http://flex4jiaocheng.com/blog/325 You should be familiar with the setTimeout method, and the setinterval method is usually used less frequently. In fact, both of them are very useful "timers", the difference is as follows: SetTimeout (function, Int, null): uint It suspends the int ms before executing the function, and the function is executed only once. Setinterval (function, Int, null): uint It

Recently I encountered a javascript question. The content is as follows: Try to implement Javascript in the annotation SectionCode, You can add moreCode (if it cannot be implemented, describe the reason why it cannot be implemented ): VaR OBJ = function (MSG ){This. MSG = MSG;This. Shout = function (){Alert (this. msg );} This. waitandshout = function (){// Execute the above shout method every five seconds}} VaR testobj = new OBJ ("Hello, world! ");Testobj. Shout (); frankly speaking,

Let's take a look at my previous Article : The Nine traps and comments of JavaScript, which were mentioned in focus poocus. The original author's understanding of this is biased, not just the issue of IE, but the issue of thread implementation by the existing JavaScript Engine (I don't have many concepts about threads, if not, hope you can advise me a lot ).. Let's look at 1 and 2. If you can see Source code , We will find that our task is very simple, is to add an input text box to the docume

If window. setTimeout is frequently used on the page, the Code judgment may be confusing. For example If (! Timerid) Timerid = Window. setTimeout (dosomething, duration ); Window. cleartimeout (timerid ); And so on. Methodqueue is an object used to manage setTimeout. It can effectively manage and reuse timer. You only need to call methodqueue. Add (ID, delay, re

The common usage of setTimeout is as follows: 　var arr = [1,9,2,8,3,7,4,6,4,5];for(var i = 0, len = arr.length; i setTimeout(function(x){ console.log(x); },arr[i],arr[i]); } Although this is not a good usage, the third parameter of setTimeout is mainly supported by a series of browsers except ie. For details, refer to this article

See the followingCode: VaR STR = 'aaa'; var num = 2; function auto (Num) {alert (Num);} setTimeout ('Auto (Num) ', 4000 ); In this way, the write operation works normally, but if it is said that this is a parameter transfer, it is better to say that it is a directly used global variable. Therefore, this writing method is unnecessary. Generally, it is used to pass local variables as parameters. Modify the Code: // Var STR = 'aaa'; var num =

Both functions are timers, which are functions of the Window object, but there are many differences.1. Fundamental differencesSetTimeout ("function", time), function name or code, time unit millisecond, refers to the delay of a specified period after loading to execute the function once .Setinteval ("function", interval), which is performed once every specified time after loading.2.setTimeout Loop CallSetTimeout can be written in a function and then s

showMe is not defined error with SetTimeout ("ShowMe ()", 1000). This is because the SHOWME () function is not in the setTimeout call environment. Reproduced in this article explains and solves this problem.The original title is: 2.3. Coding your user script, excerpt fromDive into GreasemonkeyYou can download this book for free here http://diveintogreasemonkey.org/2.3. Coding your user scriptOur first user