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Hi viewers
 using javascript we can create a simple calculator.
 to perform this calculation we must know some of the mathematical
function to do calculations.
While Doing Calculation Work in JavaScript 

 we use following functions 
var price = $("#id").val();
1)    parseInt(price);        //If you want to convert into integer format
2)    parseFloat(price);    //If you want to convert into Float Format
3)    price.toFixed(2);       //Display Decimal up to 2 place


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