String manipulations in Javascripts

String.indexOf()

Return value:

-1 if not found

0 or higher than 0 as the index of the position found

Remove one part of a string

Method 1:

String.replace(//, "");

Method 2:

var indexEnd = myString.indexOf("CutHERE");

var newString = myString.substring(0, indexEnd);

Difference between String::substring() and String.substr()

substring(start, indexEnd)

With substring() the second parameter is the end index

substr(start, length)

With substr() the second parameter is the length to keep

Remove boundary whitespace : String.trim()

Use this from time to time