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Run results for:
Compare the ways to convert String to Number in JS
Compare the most popular ways to convert string to number
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Number
436.7 Ops/sec
parseInt
501.3 Ops/sec
>>0
506.9 Ops/sec
*1
503.8 Ops/sec
~~
486.3 Ops/sec
+
505.4 Ops/sec
Script Preparation code:
const minimum = 1 const maximum = 1000 var arr = Array.from({ length: 1000000 }, () => Math.floor(Math.random() * (maximum - minimum + 1)) + minimum)
Tests:
Number
return arr.map((el) => Number(el))
parseInt
return arr.map((el) => parseInt(el))
>>0
return arr.map((el) => el >> 0)
*1
return arr.map((el) => el * 1)
~~
return arr.map((el) => ~~el)
+
return arr.map((el) => +el)