Javascript for replacing n th character in a string

by Nishanth 2. April 2009 04:41

Javascript for replacing n th character in a string:

function RepalceCharacter(sourceString,stringTobeReplaced,index)

{

var re = new RegExp('^(.{'+ --index +'}).(.*)$','');

return sourceString.replace(re,'$1'+stringTobeReplaced+'$2');

};

//Test code

alert( RepalceCharacter('nishanth','XSSSSX',3) );

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