JavaScript

April has passed, May has come, Spring recruit tail can't grasp, can only go to a company internship, but in fact very fortunate is, met very nice team, although just started to go there is just familiar with the environment and water, but I still

Plan to sort out the knowledge in JavaScript you don't know, write your own ideas, and urge yourself to read.Let's start with an overall introduction, and we'll give you a comprehensive example at the end.RHS query and simply find the value of a

A few days ago to write the program in the JS file used in the ${pagecontext.request.contextpath} and then always error, there is no way to post to the server, the original JS this as a string, has always thought he is the function of

Qingming holiday period, idle bored, do a little game play, the current game logic has not found a bug, just look slightly ugly some-.-Project Address: Https://github.com/Jiasm/tetrisOnline demo:http://blog.jiasm.org/tetris/?width=16&height=40

1.JavaScript function DefinitionJavaScript uses the keyword function to define functions.A function can be defined by a declaration, or it can be an expression.1.1 Function declarationsIn the previous tutorial, you've learned about the syntax of

The above-mentioned Input[type=radio] approach published, when I do input[input=checkbox], I think it will be similar to the radio approach, the result is the same, but there are very different.Different points have1) The checkbox comes with

Recently to do data processing, custom some of the structure, such as mat,vector,point, for subtraction, such as arithmetic to repeat the definition, the code is not very intuitive, JavaScript does not have operator overloading this kind of

Find: On the code.functionIsbigenough (Element) {returnElement >= 15;}varRet1 = [12, 5, 8, 130, 44].findindex (Isbigenough); Console.log (RET1);//Index of 4th element in the Array is returned,//So this would result in ' 3 'varObjarr = [{id:1, Name: '

There are many ways to get URL parameters on the Web, and I have added comments to them. Do not know the friend can give me a message1JavaScript gets the Get parameter method (get URL parameter method) in detail

1. Variable Scopevar a = 1; function Test () { var a = 2; // 2 }test ();The above function scope declares and assigns a, and above the console, so follows the nearest principle output a equals 2.var a = 1; function test2 () { // undefined

JavaScript is more casual than other programming languages, so the JavaScript code is filled with a variety of exotic writing, sometimes mirrors, and of course, the ability to understand the various types of writing is a further understanding of the

Let's take a look at an interview question, and we'll guess what the result of this code is printed.var name = ' world! ' ;( function () { if (typeof name = = = ' undefined ') {var name = ' Jack '; C11/>console.log (' Goodbye ' + name);

A person thinks that overloading is a set of functions (methods) with the same name and different parameter lists.From a language perspective, JavaScript does not support function overloading, it is not possible to define the same function and then

Closures (closure) are a difficult and unique feature of the JavaScript language, and many advanced applications rely on closures.Here is my study note, which should be useful for JavaScript beginners.The scope of a variableTo understand closures,

Nodejs connects to the mysql database and describes the basic knowledge points, nodejsmysql This article describes how to connect nodejs to the mysql database and its basic knowledge. We will share this with you for your reference. The details are

In the vue project, cross-origin processing with axios, vueaxios Cross-origin is a very embarrassing issue. Some people can set request headers in the background, but many front-ends do not have background knowledge and cannot build a server

label in html, parent Menu Sub-menu relationship of each window in the framework structure, and frameset Menu Sub- This problem is too big for me, and I cannot understand the explanations provided by Baidu. It should be the reason why I am too white.

Describes the problems and solutions for vue-cli to quickly build a single-page application, and describes vue-cli I. The error message is similar to: Expected indentation of 0 spaces but found 4 SetBuildFileWebpack. base. conf. jsThe following

Css rendering (2) text, css rendering text I. Text Style First line indent text-indent The first line of indentation is to indent the first line of the paragraph, which is a common text formatting effect. Generally, there are two spaces at the

Css rendering (1) font and text, css rendering font text I. Font attributes 1. default font family Chrome/opera: "" Firefox: "" Safari/IE: Times, "" 2. Font attributes Font type Font-family defines the font type during initialization, such