JavaScript Advanced Programming Notes (17)

Error handling and debugging (a) the browser reported error 1. IE2. Firefox3.Safari4.Opera5.Chrome (ii) Error handling 1.try-catch statementTry { // may cause error in code }catch(error) { // What to do when an error occurs }A catch receives

On the principle and application of JavaScript cross-domain and JSONP

The same-origin strategy, a well-known security policy presented by Netscape, is now used by all JavaScript-capable browsers. Why a homologous strategy is required, here is an example:Suppose there is no homologous strategy now, what will happen?

JavaScript deferred and recursive number limits

function Runasynctts (text,speecher,audiopath) { var def = jquery.deferred (); var args = {"Synthtext": Text, "Voicespeecher": Speecher, "Wordspeed": "3", "USECSSML": "0", "audiopath": audiopath}; Tts.asynctts (Json.stringify

jquery notes: The connection and difference between jquery and JavaScript

Source: http://www.ido321.com/1019.htmlPs:lz think this title is a bit big, beyond the scope of ability, do not like to touch. Currently only recorded in the LZ capacity within the range, and continue to supplement in the future.One, the mutual

JavaScript basic Concepts (Operators)

Unary operatorThe unary operator, when processing all non-numeric values, translates the value through number () to a numeric value.Bitwise operators Negative numbers are stored in the form of twos complement on the computer,

How JavaScript works

The document represented by the HTML code is a static document that has little interactivity and makes it difficult to make a page dynamic. Adding scripting languages allows data to be processed and validated before it is sent to the server,

JavaScript Zhongyuan and Inheritance (simple example)

Create a custom object with the prototype prototype person:functionPerson (name,sex) { This. Name =name; This. Sex =sex;} Person.prototype={getName:function(){return This. Name}, Getsex:function(){return This. Sex}}varLiu =NewPerson ("LCY",

Vertical center of webpage, vertical center

Vertical center of webpage, vertical center untitled document & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;   Vertical center of webpage Only tables are used! Q: How can I center the page vertically? Which man can

Use the simple jQuery method toggleClass to implement line-by-line color change, jquerytoggleclass

Use the simple jQuery method toggleClass to implement line-by-line color change, jquerytoggleclass Today, toggleClass () is a simple method to implement line-by-line color change: the code is as follows: interlinecolor lanfeng

Example of getting started with the JavaScript indexOf method (calculate the position where the specified character first appears in the string), javascriptindexof

Example of getting started with the JavaScript indexOf method (calculate the position where the specified character first appears in the string), javascriptindexof JavaScript indexOf Method The indexOf method is used to calculate the position where

Js implements flying star special effect code, js implements star special effect code

Js implements flying star special effect code, js implements star special effect code The example in this article describes the code for js to implement the special effects of flying stars, which will be shared with you for your reference. The

An example of JavaScript recursion to implement reverse array string, javascript Recursion

An example of JavaScript recursion to implement reverse array string, javascript Recursion one JavaScript instance per day-recursively reverse array string Use JavaScript to sort string arrays. /*** Sort@ Param opt: String Array to be

Learn extjs5 with me (34 -- Design of a single module [2 create a form table bean])

Learn extjs5 with me (34 -- Design of a single module [2 create a form table bean])Join me in extjs5 (34 -- Design of a single module [2 create a form table and bean]) to create a form scheme table: CREATE TABLE

JS basics-constructor VS prototype Function

JS basics-constructor VS prototype Function JS is an object-based language. During usage, you may encounter the problem of copying objects. However, if we directly assign 'obj1 = obj1' values, data overwrite may occur. That is, when the referenced

Display and hide of jquery animation-fadeOut-fadeIn-fadeToggle-fadeTo

Display and hide of jquery animation-fadeOut-fadeIn-fadeToggle-fadeTo Show and hide the-fadeOut-fadeIn-fadeToggle-fadeTo code of the jquery Animation: Display and hide of jquery animation-fadeOut-fadeIn-fadeToggle-fadeTo-title

Json implements asynchronous request to submit comments without redirecting to other pages. json submits comments

Json implements asynchronous request to submit comments without redirecting to other pages. json submits comments Paste the code and read the code to understand the relevant logic. Html code: comment: Name: content: existing comments:

Examples of functions with variable JavaScript parameters: javascript variable

Examples of functions with variable JavaScript parameters: javascript variable Digress: I have been familiar with JavaScript For a long time, but I did not pay attention to it. I have seen JavaScript on many cool and dazzling web pages. Google's

Example of how JS adds a Cookie to retrieve the cookie value and deletes the cookie: jscookie

Example of how JS adds a Cookie to retrieve the cookie value and deletes the cookie: jscookie Cookie is a very useful function that can judge a certain state and the usage in the project is extremely high.Copy codeThe Code is as follows:Function

Jquery sample code for multi-line text image scrolling

Jquery sample code for multi-line text image scrolling Today, I will share a jquery file to implement multi-row scrolling. I have read a lot of announcements on some Forum websites. The Code is as follows: // Multi-row scrolling (function ($) {$. fn.

In javascript, the parameter arguments is used to disguise the method overload, and the javascript function parameter

In javascript, the parameter arguments is used to disguise the method overload, and the javascript function parameter Methods are overloaded in many object-oriented advanced languages. Javascript has no way to overload this concept. However, we can

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