javascript float from/to bits

Question

I am trying to perform something that is brain-dead simple in any other language but not javascript: get the bits out of float (and the other way around).

In C/C++ i

Answer 1

Like the other posters have said, JavaScript is loose typed, so there is no differentiation in data types from float to int or vice versa.

However, what you're looking for is

float to int:

Math.floor( 3.9 ); // result: 3 (truncate everything past .) or
Math.round( 3.9 ); // result: 4 (round to nearest whole number)

Depending on which you'd like. In C/C++ it would essentially be using Math.floor to convert to integer from float.

int to float:

var a = 10;
a.toFixed( 3 ); // result: 10.000