4 ms·

Recently wanted to convert a string of '0' or '1' to a native boolean, shortcut value = !!~~value;

• bpicolo 13y ago
  jsPerf shows !!parseInt(str) and parseInt(str)? true : false as being decently faster...assuming I used jsperf properly. http://jsperf.com/test-bool-cast http://jsperf.com/test-bool-cast
  • mmastrac 13y ago
    Interestingly enough, it's probably faster to test != '0': http://jsperf.com/test-bool-cast/2 http://jsperf.com/test-bool-cast/2
  • xhrpost 13y ago
    Yup, good call.