Convert string to number

Question

How to convert string to number in rect?

I have a function that receives two parameters of type number(2,6), however, when sending them from one screen to another it is received as string.

How do I convert?

Answer 1

In Native:

var stringToNumber = "23";
var numberValue = utilsModule.convertString(stringToNumber);

reference: https://docs.nativescript.org/core-concepts/utils

Javascript:

 var number = parseInt(id.substring(indexPos) , 10 ) + 1;

reference: https://stackoverflow.com/a/18713579/7920143

I hope I’ve helped.

Answer 2

It worked for me like this:

Number(string);

Answer 3

Convert a string for number in React Native is the same problem to do this in Javascript, which is the language used by the framework. So just use the parseFloat():

parseFloat("123.45") // => 123.45 (Number)

Another more "exotic" way to convert is by using the plus sign:

+"123.45" // => 123.45