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Run results for:
JS Variable Performance (const vs let vs var)
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Run details:
User agent:
Mozilla/5.0 (Android 16; Mobile; rv:143.0) Gecko/143.0 Firefox/143.0
Browser:
Firefox Mobile 143
Operating system:
Android
Device Platform:
Mobile
Date tested:
7 months ago
Test name
Executions per second
TEST_1: VAR
16111908.0 Ops/sec
TEST_2: LET
15724763.0 Ops/sec
TEST_3: CONST
15577047.0 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
/*your preparation JavaScript code goes here To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/ async function globalMeasureThatScriptPrepareFunction() { // This function is optional, feel free to remove it. // await someThing(); }
Tests:
TEST_1: VAR
var g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
TEST_2: LET
let g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()
TEST_3: CONST
const g = { e: [] } g.o = function(x) { g.e.push(...[1,2,3]) } g.o()