Benchmark: JavaScript Convert Value to String: String() vs .toString() vs `${value}` vs ("" +) vs (+ "")

JavaScript Convert Value to String: String() vs .toString() vs `${value}` vs ("" +) vs (+ "") (version: 2)

Comparing performance of: Number String() vs Number.toString() vs Number `${value}` vs Number "" + value vs Number value + "" vs BigInt String() vs BigInt.toString() vs BigInt `${value}` vs BigInt "" + value vs BigInt value + "" vs Boolean String() vs Boolean.toString() vs Boolean `${value}` vs Boolean "" + value vs Boolean value + "" vs Object String() vs Object.toString() vs Object `${value}` vs Object "" + value vs Object value + ""

Created: 3 months ago by: Registered User

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Script Preparation code:

let nums = [];
for (let i = 0; i < 1024; i++)
  nums.push(i);
let bigInts = [];
for (let i = 0; i < 1024; i++)
  bigInts.push(BigInt(i));
let bools = [];
for (let i = 0; i < 1024; i++)
  bools.push((i | 1) === 0);

Tests:

Number String()
const strs = nums.map(String);
Number.toString()
const strs = nums.map(i => i.toString());
Number `${value}`
const strs = nums.map(i => `${i}`);
Number "" + value
const strs = nums.map(i => "" + i);
Number value + ""
const strs = nums.map(i => i + "");
BigInt String()
const strs = bigInts.map(String);
BigInt.toString()
const strs = bigInts.map(i => i.toString());
BigInt `${value}`
const strs = bigInts.map(i => `${i}`);
BigInt "" + value
const strs = bigInts.map(i => "" + i);
BigInt value + ""
const strs = bigInts.map(i => i + "");
Boolean String()
const strs = bools.map(String);
Boolean.toString()
const strs = bools.map(i => i.toString());
Boolean `${value}`
const strs = bools.map(i => `${i}`);
Boolean "" + value
const strs = bools.map(i => "" + i);
Boolean value + ""
const strs = bools.map(i => i + "");
Object String()
const str = String([nums, bigInts, bools]);
Object.toString()
const str = [nums, bigInts, bools].toString();
Object `${value}`
const str = `${[nums, bigInts, bools]}`;
Object "" + value
const str = "" + [nums, bigInts, bools];
Object value + ""
const str = [nums, bigInts, bools] + "";

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Number String()
Number.toString()
Number `${value}`
Number "" + value
Number value + ""
BigInt String()
BigInt.toString()
BigInt `${value}`
BigInt "" + value
BigInt value + ""
Boolean String()
Boolean.toString()
Boolean `${value}`
Boolean "" + value
Boolean value + ""
Object String()
Object.toString()
Object `${value}`
Object "" + value
Object value + ""

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser/OS: Chrome 144 on Windows

View result in a separate tab

Test name	Executions per second
Number String()	207873.6 Ops/sec
Number.toString()	222834.9 Ops/sec
Number `${value}`	473930.1 Ops/sec
Number "" + value	470552.9 Ops/sec
Number value + ""	474393.1 Ops/sec
BigInt String()	47319.4 Ops/sec
BigInt.toString()	52418.5 Ops/sec
BigInt `${value}`	52524.6 Ops/sec
BigInt "" + value	51093.6 Ops/sec
BigInt value + ""	51298.5 Ops/sec
Boolean String()	239351.8 Ops/sec
Boolean.toString()	304650.0 Ops/sec
Boolean `${value}`	425376.8 Ops/sec
Boolean "" + value	305662.1 Ops/sec
Boolean value + ""	323930.4 Ops/sec
Object String()	25025.8 Ops/sec
Object.toString()	25195.6 Ops/sec
Object `${value}`	24817.0 Ops/sec
Object "" + value	24854.1 Ops/sec
Object value + ""	24873.4 Ops/sec

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