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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
Number String()	112052.4 Ops/sec
Number.toString()	135104.0 Ops/sec
Number `${value}`	271051.5 Ops/sec
Number "" + value	268480.8 Ops/sec
Number value + ""	268642.6 Ops/sec
BigInt String()	26907.7 Ops/sec
BigInt.toString()	29794.3 Ops/sec
BigInt `${value}`	30056.1 Ops/sec
BigInt "" + value	28197.5 Ops/sec
BigInt value + ""	28401.3 Ops/sec
Boolean String()	120698.8 Ops/sec
Boolean.toString()	171620.6 Ops/sec
Boolean `${value}`	232998.7 Ops/sec
Boolean "" + value	167900.3 Ops/sec
Boolean value + ""	181617.0 Ops/sec

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] + "";

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

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 + ""