get format file in javascript
var myString = "this.is.my.file.txt"
alert(myString.substring(myString.lastIndexOf(".") + 1));
// Result
txtget format file in javascript
var myString = "this.is.my.file.txt"
alert(myString.substring(myString.lastIndexOf(".") + 1));
// Result
txtCopyright © 2021 Codeinu
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