JavaScript regex matches HTML

Regular expressions ]*>.*?| The hello|abcd does not match Abc|123|ddd Regular expressions ^[^<> ' ~!/@\#}$%:;) (_^{&*=| ') +]+$ The This is a test

JavaScript full Learning (object)

1. Point the Prototype (prototype) to the object (inheritance)var Student = { ' Robot ', 1.2, function () { Console.log ( this. Name + ' is running ... ');} ; var xiaoming = { ' xiaoming '= Student; // for demonstration

Talking about the push () function of JavaScript

The push () method adds one or more elements to the end of the array and returns the new length. The return value is the new length after the specified value is added to the array.Syntax: Arrayobject.push (newelement1,newelement2,...., newelementx)

JavaScript Novice Learning Notes 4--I can't remember a few pits: short-circuit logic, passing by value, declaring ahead

1. Short Circuit logicIn a logical operation, if the previous condition can already draw the final conclusion, all subsequent conditions are no longer executed! The logical operation here refers to logic and logic or.We have to understand that the

Javascript Common Type Detection

1. Determine if the variable is the data type of the array?Method One: Determine whether it has an "array nature", such as the slice () method. You can define the slice method for the variable yourself, so it sometimes fails.Method Two: obj

Regular expressions in JavaScript

Tag: Pat Lin cannot find ASP pattern nod replacement string Reg stringThe RegExp object is used in JavaScript to represent regular expressions.There are 3 methods for RegExp objects, respectively:1, compile2. exec3. TestSo how exactly are these

JavaScript error-prone knowledge point collation

This article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object copy and

Javascript-Month-day conversion 12-hour system

12345678 - $Javascript-Month-day conversion 12-hour system

JavaScript error-prone knowledge point collation

This article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object copy and

JavaScript gets timestamp, date formatting

One, JS get timestamp: The first method: var timestamp1 = date.parse (New Date ()); The second method: var timestamp2 = (new Date ()). ValueOf (); The third method: var Timestamp3 = new Date (). GetTime (); alert (TIMESTAMP1);//Results: 1372751992000

Note | JavaScript authoritative Guide [Sixth edition] Chapter 2nd: Lexical structure

The syntax structure provides rules such as what the variable name is, how to write the comment, and how the program statements are delimited. This chapter introduces the lexical structure of JavaScript in a short space. 2.1. Character SetJavaScript

JavaScript is easy to mistake.

JavaScript knowledge points1. Variable Scopevar a = 1;function Test () {var a = 2;Console.log (a); 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 =

JavaScript error-prone knowledge point collation

ObjectiveThis article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object

Inheritance-javascript Object-oriented advanced

# # of Inheritance # #JS is not a completely object-oriented language, it does not specifically implement the mechanism of object inheritance, but can be implemented through the syntax of the object inheritance, to achieve inheritance can be

This-javascript Object-oriented advanced

# The use of this #Focus: Who calls on who to point //es6 new feature, define the arrow function var fn = () =>{...} If there is this, it is cured, basically similar to the bind situation1, Value: OK when the function is actually called, because

Closure-javascript Object-oriented advanced

# Closed Bag #My understanding: In the interview, first say the scope chain, and then the cause of the closure, then garbage collection GC, finally said closures.A. A variable declared inside a function is its private variable.B. In JavaScript

JavaScript emulation implements inheritance, inherits one parent class template and prototype object

      " >         My JSP  ' oop7.jsp '  starting page          -->           this is my  JSP page.   This article is from the "matengbing" blog, make sure to keep this source http://matengbing.blog.51cto.com/11395502/1879664JavaScript emulation

Traversal of JavaScript Object properties

Tag: Object BSP name any script traversal numeric get referenceES6 there are altogether 5 ways to traverse the properties of an object.(1) for...infor...inIterates through the object's own and inherited enumerable properties (without the symbol

JavaScript Advanced Programming Study notes (5)-object-oriented programming

Welcome to my public number "front-end small fill", focus on the foundation of the front-end Technology and project development Learning.The content of this section corresponds to the sixth chapter of the Advanced programming of Javascript.1. object-

You don't know. JavaScript (roll up) reading notes two----lexical scopes

In the previous article, we defined scopes as "a set of rules for managing and maintaining variables," and then it's time to discuss the scope of JS in depth, first of all we need to know that there are two main types of work in scope, one is

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