Benchmark Run Result for: new const vs reassigning let vs reassigning var

new const vs reassigning let vs reassigning var

This will evaluate the difference between assigning 2 constants or, creating 1 variable and reassigning it later on.

Date tested: 4 years ago

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.38 Safari/537.36

Test name	Executions per second
New consts	16.2 Ops/sec
Reassign lets	16.3 Ops/sec
Reassign vars	15.9 Ops/sec

Benchmark definition (click to collapse):

Tests:

New consts
for(var x = 0; x < 99999999; ++x) { const first = x; const second = x+1; }
Reassign lets
for(var x = 0; x < 99999999; ++x) { let ourLet = x; ourLet = x+1; }
Reassign vars
for(var x = 0; x < 99999999; ++x) { var ourVar = x; ourVar = x+1; }

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