JavaScript

DescriptionThe previous blog introduces JS and some basic types of JS simple knowledge, this blog will detail the basic type of JS, the introduction of the object type, more detailed description of the object type will be followed.Description of the

Folder: Dom Family tree Basic properties and methods of a node Document and GetElement method Dom Family treeThe DOM is able to portray any HTML or XML document as a structure composed of multiple hierarchical nodes. The nodes

An event is an action that is performed by the user or by the browser itself. such as click, Load, and mouseover are the names of the events. The function that responds to an event is called an event handler. The name of the event handler begins

1, the Interception of stringsvar str= "Www.baidu.com/?page";1, substring () indexOf () Str.lastindexof () string clippingStr.substring (0, Str.indexof ("? page"));Str.substring (0, Str.lastindexof ("? page"));2. Regular expressionsStr.replace

JavaScript in-depth understanding of JS closuresReprinted 2010-07-03 I want to commentClosures (closure) are a difficult and unique feature of the JavaScript language, and many advanced applications rely on closures.The scope of a variableTo

1.JavaScript variable boostIn JavaScript, the declarations of functions and variables are promoted to the topmost part of the function.In JavaScript, variables can be declared after they are used, that is, variables can be declared using the

JS Console Error in the main Division two major categories:The first Category: syntax error, this type of error in JavaScript pre-parsing process if encountered, it will cause the entire JS file can not be executed.Another category: collectively

1 varpattern=/google{4,8}$/;//{4,8}$ Indicates the end of the match 4-8 times2 varStr= ' googleeeeeeeee ';//4-8 times for e3 Alert (pattern.test (str));4 5 varpattern=/(google) {4,8}$/;//grouping, which can be seen as a character6 varStr= '

JS handles some simple calculation questions and JS handles simple calculation questions Let's first look at the effect after running: Next we will share with you all the code: document whether the question is a leap year:

Vue2.0 user permission control solution example, vue2.0 permission Control Vue-Access-Control is a front-end user permission Control solution based on Vue, Vue-Router, and axios. It controls the routing, view, and request layers, this allows

Use vue-router to set the title method for each page. Basic Environment configuration: webpack + vue2.0 + vue-router + nodeJS Go to the index. js file under the router folder. First introduce: import Vue from 'vue'import Router from

Detailed tutorial on using icon in Vue Element (third-party), vueicon The icon library provided by element-ui is still incomplete. You still need to introduce a third-party icon, which has always been a problem when you use it. Refer to some

About CSS margin merging and CSS margin Merging First, it must be clear that only the vertical outer margin of the block boxes in the normal document flow will be merged. The margin between the inside box, floating box, or absolute positioning is

Build a simple query server using express. This article describes how to use express to set up a simple query server. The details are as follows: The technology stacks used include express and mysql. Project Structure: service--node_modules--app.js--

React component refs Usage Details, reactrefs Usage Details As the name suggests, the ref can be used as a reference or an identifier for a component. As a component property, its attribute value can be a string or a function. In fact, the use of

Detailed Description: Custom ajax supports cross-origin component encapsulation and ajax Class. create () Analysis Create class inheritance like prototype var Class = { create: function () { var c = function () { this.request.apply(this,

The method for generating exe executable files on the web front-end page. With the rise of HTML5 and the unification of JavaScript, a technology called [cross-platform] is becoming increasingly popular. Why is it so hot? Software developers only

Detailed description on the use of the applet template and the use of the template This article shares the usage of the mini-program template for your reference. The specific content is as follows: Take the home page and list page of The MUI

Concept and Usage Analysis of JS design patterns, and js Design Patterns This article describes the concept and usage of the state mode in JS design mode. We will share this with you for your reference. The details are as follows: 1. Overview When

Summary of html and css naming rules and css naming Summary I. Description of naming rules Ii. css style naming of an important part of the outer part of a webpage Other css naming instructions DIV + CSS naming Summary: whether it is to use ".