JavaScript

After discussing some of the JavaScript threading knowledge, we might as well look back and see if JavaScript is not multithreaded. The following is a very simple code (demo, without considering compatibility issues): code judgment one:DivID= "Div"

This article is NetEase Cloud classroom Jin Xu-liang Teacher's course note, records down, to prepare for forgetting.Variable TypeThere are only 6 kinds: four raw data Types Boolean, number, String, undefine, and other object,function are

The jump statement, as you can see from the name, allows JavaScript execution to jump from one location to another. The break statement is a jump to the end of a loop or other statement, and the continue statement terminates execution of the loop

Look at Uncle Tom's "Do you really understand JavaScript?" ", there are 5 of questions, I have done it all, and then run it in Chrome's console, although only the wrong one, but still carefully read the next answer, in this summary, to see if we

As we all know JavaScript is an object-oriented language, objects can be instantiated with the new keyword, but if I want to get the name of the instantiated object, how can I break it? Like what:1 function Dog () {2 This function () {3 }4};

This article official address: Http://www.xiabingbao.com/javascript/2015/07/04/javascript-typeIn JavaScript, there are 5 basic data types and 1 complex data types, with basic data types:Undefined, Null, Boolean, number, and The complex data type

function Promotion Promotion of functions and variable definitions in JavaScript

We know that JavaScript's date object does not provide a date format function, and converting a Date object to a "2015-7-02 20:35:11" format is a common requirement in the project. Recently in our project saw a piece of code, very short, here to

Find Peak ElementA peak element is an element, which is greater than its neighbors.Given an input array where num[i] ≠ num[i+1] , the find a peak element and return its index.The array may be contain multiple peaks, in this case return the index to

In JavaScript try...catch ... Statement, we learned how to catch a system-thrown error. JavaScript allows us to customize the error and throw the error message.Throw statementThe throw statement allows us to create custom errors.The correct

Regular Expressions: Find, replace, and fetch operations on information in a string. (comments and whitespace are not supported, must be written in one line)Creation of regular Expressions: characters that are contained between a pair of slashes

statements in ECMAScript is terminated by a semicolon, though omitting the semicolon makesThe parser determine where the end of a statement occurs, as in the following examples:var sum = a + b //valid even without a semicolon-not

to manipulate parameters in JavaScript:1 The properties of String objects in JavaScript for strings:length--returns the length of the string, not the function, and does not require parentheses.prototype--Adding properties and methodsThere are a

For the comparison operator in JavaScript, we may use more "= =", for "= = =" Many people may be very unfamiliar. = = = = Identity, first compare the two sides of the variable data type is equal, followed by comparison of the two sides of the

Simple Application of JS-SDK Based on nodejs2015 is the year of the rise of the Hybrid App. Web apps and Native apps have their own strengths and fatal weaknesses. while pursuing a smooth native user experience, hybrid will become an inevitable

Dynamic HTML binding and dynamic binding In front-end Web development, we often encounter the need to dynamically bind some HTML strings from the backend or dynamically spliced to the page DOM display, especially in the Content Management System

Compile your own template parser in javascriptCompile your own template parser Recently I have been studying templates such as artTemplate, ejs, and baaiduTemplate. Therefore, I wrote a simple template parser on the rise. What functions does a basic

Three methods for parsing JSON data in JavaScript: javascriptjson Overview At present, the JSON format is becoming more and more important in web development. Especially in the Process of ajax development projects, it is often necessary to return

How to Use RequireJS to optimize JavaScript reference code This article mainly introduces how to use RequireJS to optimize JavaScript reference code. RequireJS is a popular JS library. For more information, see RequireJS is an effective way to

How to export excel using nodejs This document describes how to export an excel file from nodejs. Share it with you for your reference. The details are as follows: Nodejs generates and downloads excel files for query data. The excel-export plug-in