Required Specific Part of string using Jquery or JavaScript?

Question

I want Require to Specific Part of string using Jquery or JavaScript?

Example :

var name = "jayesh.photo.png";
var name2 = "ruchita.photo.jpeg";
var name3 = "anil.photo.jpg";

How to get image extension using Jquery or JS.

I want ext1 = png, ext2 = jpeg, ext3 = jpg ;

Answer 1

You can use split() with . (dot) as delimitor and take the last array element after split.

 var name = "jayesh.photo.png"; var name2 = "ruchita.photo.jpeg"; var name3 = "anil.photo.jpg"; var nameArray = name.split('.'); alert(nameArray[nameArray.length-1]); var name2Array = name2.split('.'); alert(name2Array[name2Array.length-1]); var name3Array = name3.split('.'); alert(name3Array[name3Array.length-1]) 

Answer 2

您可以使用如下所示的String函数：

var required_string = name.substring(name.lastIndexOf(".")+1,name.length());

Answer 3

You could achieve this multiple ways:

var name = "jayesh.photo.png";

//1
console.log(name.replace(/^.*?\.([a-zA-Z0-9]+)$/, "$1"));

//2
console.log(name.substring(name.lastIndexOf(".")+1, name.length));

//3
var testvar = name.split('.');
console.log(testvar[testvar.length-1]);

//4
console.log(name.split('.').pop());

Answer 4

You could populate an array and loop it:

var name = "jayesh.photo.png";
var name2 = "ruchita.photo.jpeg";
var name3 = "anil.photo.jpg";

var photo = [name, name2, name3];
$.each(photo, function(key, value) {
    console.log( "extension = " + value.substring(value.lastIndexOf("."),value.length ) );
});