ES6 Map vs Object properties (v51)

Revision 51 of this benchmark created on

Description

Compare native Map implementation vs an object without hasOwnProperty as a hash map.

Setup

var map = new Map(),
        obj1 = Object.create(null),
        obj2 = {};
    
    for (var i=0; i < 1000; i++) {
       var key = Math.random(), val = Math.random();
       
       map.set(key,val);
       obj1[key] = val;
       obj2[key] = val;
    }

Test runner

Ready to run.

Testing in
TestOps/sec
map.set(key,val)
for ( key in obj1 ) {
    obj1[key];
}
ready
obj[key] = val;
for ( key in obj2 ) {
    obj2[key];
}
ready
Iterate Map (for of)
val = map.keys();

for ( key of val ) {
    map[key];
}
ready
Iterate Map (for)
val = map.values();

for ( key of val ) {
    key;
}
ready
Iterate Object
map.forEach(function(k,v){v; });
ready

Revisions

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