Little things that make live easier #3: javascripts' Number.toFixed() for a fixed number of digits after the decimal point.

Javascript's Number object has the toFixed method that allows display a number with a fixed amount of digits after the decimal point. Unfortunately, it doesn't round the number.

function tf(n) { out.innerHTML += n.toFixed(3) + '<br>'; } tf(4 ); // 4.000 tf(4.2 ); // 4.200 tf(4.1004); // 4.100 tf(4.1009); // 4.100

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Source code on github