How to convert string value (ex: double value) to percentage in javascript?

I would like to know how we can convert the following value to a percentage in javascript?

First Expected Output

 Input Value   :  0.03222772304422584
 Expected Value:  0.03  

Second Expected Output

 Input Value   :  0.03222772304422584
 Expected Value:  .03  

Thanks in advance,

Kathir

Answer

You can use toFixed() and slice() like:

var n = +"0.0322277230442258"; //converts String to Number
var r = n.toFixed(2); // returns 0.03

var r2 = r.slice(1): // returns .03 by removing the first character