converst strig in number in js

console.log(10+"1"); //101   both will be string
console.log(10-"1"); //9     string will be taken as number

const numberInString = "20"; 
console.log(typeof(numberInString)) // typeof is string this is string in double quote " "
const numInNum = parseInt(numberInString) // now numberInStrings variable converted in an Integer due to parseInt
console.log(typeof(numInNum)) // this tell us the type of numInNum which is now a number

let myNumber = Number("5.25"); //5.25