Earlier we’ve seen 6 ways to convert a number to a string in JavaScript. Now, let’s have a look at how you can convert a string to a number in JavaScript:

1. Convert using the Number constructor

const myString = '10'

const myNumber = Number(myString)

console.log(myNumber)
console.log(typeof myNumber)

//output
10
number
Code language: JavaScript (javascript)

2. Convert using parseInt()

const anotherString = '20'

const anotherNumber = parseInt(anotherString)

console.log(anotherNumber)
console.log(typeof anotherNumber)

//output
20
number
Code language: JavaScript (javascript)

3. Convert using parseFloat()

const yetAnotherString = '30'

const yetAnotherNumber = parseFloat(yetAnotherString)

console.log(yetAnotherNumber)
console.log(typeof yetAnotherNumber)

//output
30
number
Code language: JavaScript (javascript)

4. Convert by multiplying by 1

const seriouslyAnotherString = '40'

const seriouslyAnotherNumber = seriouslyAnotherString * 1

console.log(seriouslyAnotherNumber)
console.log(typeof seriouslyAnotherNumber)

//output
40
number
Code language: JavaScript (javascript)

5. Convert by dividing by 1

const areYouKiddingAnotherString = '50'

const areYouKiddingAnotherNumber = areYouKiddingAnotherString / 1

console.log(areYouKiddingAnotherNumber)
console.log(typeof areYouKiddingAnotherNumber)

//output
50
number
Code language: JavaScript (javascript)