fuzzy string matching javascript

argument to 0.var str = "Hello World" alert (Str.slice ( -3)),//rldalert (str.substring ( -3)),//hello Worldalert (Str.substr (-3));// Rldalert (Str.slice (3,-4));//lowalert (Str.substring (3,-4));//helalert (Str.substr (3,-4));/"" (Empty string)3 String Position methodIndexOf () lastIndexOf () accepts two parameters, the character to search for and the starting positionString.IndexOf (' a ')//a indicates

String ObjectTwo types of String objects are createdvar a= "Hello";var b=new String ("Hello");Here's howCharAt () Find characters in a string based on subscript 　　　　Alert (A.charat (3));//Returns a character string according to the subscript 　　　　Alert (A.charat (10));//empty

In JavaScript, the regular expression consists of two parts: the matching pattern text of the regular expression, and the modifier that matches the pattern text;Modifier: Modifier Description I Ignore case G Perform a global match M Perform multi-line matching The

visible externally. function, we define an entity object literal, which has two attributes, corresponding to the left and right angle brackets of the label. returnand then an anonymous function that writes what we're going to do in this function. We call replace the method, and the first argument places the regular expression: / ([^;] +);/g The matching rule for this regular expression is: Start with "", followed by one or more than "

JS analog C # string formatting operation /*** * * Function: string format substitution operation ***/ String.prototype.format = function () { var args = arguments; Return This.replace (/\{(\d+) \}/g, function (M, i) {return args[i]; } JS implements the string processing function format () similar to C #: Familiar with C # should know that th

123456 - +Test environment: Version 40.0.2214.115 mTest results: A represents the complete substring of the match, such as: b indicates the successful part of the match, such as: LT c indicates the subscript of the matched complete substring, such as: 0 D indicates a test string, such as: E for undefined About "capturing group" in regular expressions, refers to the regular expression through () the

String.charat (POS);The Chartat method returns the character of the POS position in string./* * * Returns the character at the parameter position */ var name = "CHENQF"; Name.charat (1); //String.Concat (String ...);Constructs a new string by connecting the string to the argument./* * * for connection strings, but not

Use of the String. match () method in JavaScript This article describes how to use the String. match () method in JavaScript. It is the basic knowledge in the JS beginners. For more information, see This method is used to retrieve and match strings targeting regular expressions. Syntax ? 1

The use of the String. match () method in JavaScript is described in detail, and javascriptstring This method is used to retrieve and match strings targeting regular expressions.Syntax String. match (param) The following is the detailed information about the parameters: Param: Regular Expression object Return Value: If the regular expression does no

Function: Split () Function: uses a specified separator to split a string and store it in an array.Example:STR = "JPG | BMP | GIF | ICO | PNG ";Arr = thestring. Split ("| ");// Arr is an array containing character values "jpg", "BMP", "GIF", "ICO", and "PNG" Function: John () Function: combines an array into a string using the separator you selected.Example:VaR delimitedstring = myarray. Join (delimiter );