String functions in javascript / jQuery

String Functions

     Usually the string is defined with in single quote or double quote in JavaScript/jQuery, in jQuery have some built in methods to manipulate the string.

Types
     charAt()
     toUpperCase()
     toLowerCase()
     replace()
     split()

i)charAt

     Find the character position from given string.

var str="Allinworld99";

var str_val=str.charAt(3);  //It returns i

ii)toUpperCase

     Convert the given string to upper case letters.

var str="Allinworld99";

var str_val =str.toUpperCase();  //It returns ALLINWORLD99

iii)toLowerCase

     Convert the given string to uppercase letters.

var str="ALLINWORLD99";

var str_val =str.toLowerCase();  //It returns allinworld99

iv)replace

     This method is used to replace word/character by another word/character.

var str="3inworld99";

var str_val=str.replace("3","All");  //It returns Allinworld99

v)split

     This method is used to split the string by using a delimiter and push it into an array.

var str="A,L,L,I,N,W,O,R,L,D";

var X=str.split(",");  //It returns ["A","L","L","I","N","W","O","R","L","D"]

Example Program:- (Editor)

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Output:-

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