number with two decimal digits

What js function to use to get a number with many decimal digits[776.986578932245] to a number with two decimal digits[776.98] ?

Look up toFixed()

Eric

var x = 776.986578932245;
var y = x.toFixed(2);
alert (y);
alert (typeof y) // note result is a string

exist any other function of type:

y=function(x) ; // x=776.986578932245 y=776.98

sure.

function to2(x){return parseFloat(x.toFixed(2));}

Or . . .


Number.prototype.round = function(x) {
x = Math.pow(10, x);
return Math.round(this * x) / x;
};



(7.569).round(2); //7.57
(7.561).round(2); //7.56

var x = 0.123456;
x.round(0); //0
x.round(3); //0.123