JS float type conversion and take n decimal places
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parseInt (variable), parseFloat (variable) and other methods to carry out the type conversion. Note: No parseDouble (variable) This type of conversion, because
regardless of javascript in the single-precision and double precision float double, a small number of variables everything that is float, so to get the n decimal places, use the method toFixed (n) to get.
For example:
var f = 2.56556;
f.toFixed (2);
Preferable to the variable f 2 after the decimal, if not float type, but also the need for type conversion (parseFloat (variable name)), to obtain by this method.
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