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Detailed introduction to the basic series

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1 for...of string traversal interface for(let i of "abc"){ console.log(i); } // a // b // c2 includes whether it contains a certain string, returns a Boolean format: str.includes(searchString[, position]) and indexOf comparison: indexOf: returns the subscript to determine whether a certain string is included, the subscript is the position of the string includes: Returns a Boolean value, whether a certain string is included. This method is feasible if you only determine whether the string is included. var s = "hello"; // es5 s.indexOf("o"); // 4 //

1. Basic introduction to es6--String expansion

Detailed introduction to the basic series

##Introduction: The expansion of the es6 basic series of strings. Let’s take a look at what es6 is.

2. JS Basic Series Regular Expressions

Detailed introduction to the basic series

##Introduction: Regular expressions are a very powerful thing. Today I will simply introduce them to those who are new to JS. If there are any controversial aspects, please leave a message! 1.1 What is a regular expression? Regular expression (regular expression) is an object that describes a character pattern. ECMAScript's RegExp class represents a regular expression, and both String and RegExp define the use of regular expressions.

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4. Java Basics Series 17: Using DOM and SAX , Detailed explanation of XML files parsed by JDOM and DOM4J

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A series of basic php tutorials suitable for entry

Introduction: A series of basic php tutorials suitable for entry

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DBA Basics Series SQL Server 2014: 2. SQL Server user database initialization configuration

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DBA Basics Series SQL Server 2014: 1. SQL Server installation and deployment (independent deployment, non-domain environment)

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Detailed introduction to the basic series

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