Object vs. Seal vs. Freeze

JavaScript performance comparison

Test case created by Oncle Tom

Info

I was wondering why my tests took much more time than average.

Seal was adding more security… but more latency too.

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Testing in unknown unknown
Test Ops/sec
Regular Object Constructor
 
new(function Dummy(args) {
  this.foo = 'wont be foo';
  this.emptiness = [];
  this.mind_changer = false;
})({
  foo: 'will be foo',
  mind_changer: true
})
 pending…
Sealing Object Constructor
 
new(function Dummy(args) {
  this.foo = 'wont be foo';
  this.emptiness = [];
  this.mind_changer = false;

  Object.seal(this);
})({
  foo: 'will be foo',
  mind_changer: true
})
 pending…
Freezing Object Constructor
 
new(function Dummy(args) {
  this.foo = 'wont be foo';
  this.emptiness = [];
  this.mind_changer = false;

  Object.freeze(this);
})({
  foo: 'will be foo',
  mind_changer: true
})
 pending…

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