get off number in javascript

To convert a string to a number in JavaScript, you can use the parseInt() or parseFloat() functions.

For example:

index.tsx
let myString = "123";
let myNumber = parseInt(myString);
console.log(myNumber); // output: 123
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The parseInt() function converts a string to an integer, while parseFloat() converts a string to a floating-point number.

If the string cannot be converted to a valid number, both functions will return NaN (Not a Number).

index.tsx
let myString = "Hello, World!";
let myNumber = parseInt(myString);
console.log(myNumber); // output: NaN
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Note that both functions only look at the beginning of the string, so if the string contains other characters after the number, they will be ignored.