In Angular, there are several ways to convert a string to a number. Here are a few options:

  1. Using the Number constructor:
let num = new Number('123');
  1. Using the parseInt function:
let num = parseInt('123');
  1. Using the parseFloat function:
let num = parseFloat('123.45');
  1. Using the + operator:
let num = +'123';

It’s important to note that these methods will only work if the string represents a valid number. If the string is not a valid number, you will get NaN (Not a Number) as the result.

You can check if the result is NaN using the isNaN function:

if (isNaN(num)) {
  // num is not a number

You can also use the Number function to handle the conversion and check for NaN at the same time:

let num = Number('123');
if (isNaN(num)) {
  // num is not a number

It’s also worth noting that the parseInt and parseFloat functions have an optional radix parameter that specifies the base of the number in the string. For example, if the string is a hexadecimal number, you can use parseInt with a radix of 16:

let num = parseInt('FF', 16); // num is 255

I hope this helps! Let me know if you have any questions.

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