Answers for "javascript tu number"

2

converst strig in number in js

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
Posted by: Guest on September-11-2020
-2

string to number javascript

new Number(valeur);
var a = new Number('123'); // a === 123 donnera false
var b = Number('123'); // b === 123 donnera true
a instanceof Number; // donnera true
b instanceof Number; // donnera false
Posted by: Guest on April-03-2020

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