Test name | Executions per second |
---|---|
for-in | 1284.5 Ops/sec |
Object.keys | 494.1 Ops/sec |
var obj = {
'a': 1,
'b': 1,
'c': 1,
'd': 1,
'e': 1,
'f': 1,
'g': 1
};
for (var i=10000; i > 0; i--) {
var k = 0;
for (var key in obj) {
k++;
}
}
for (var i=10000; i > 0; i--) {
Object.keys(obj).length;
}