Data Conversion

Data conversion is a part of progaming let think data come from data base and it is in object format so we have to change it to our spacific version of data.

For Example:

const score1 = 33;
const score2 = "33sf";
const score3 = null;
const score4 = undefined;

console.log(typeof score1);
console.log(typeof score2);
console.log(typeof score3);
console.log(typeof score4);

Output:

Number
String
Object
undefined

Keyword	Description
`Number()`	Converts a value to a number.
`String()`	A primitive data type representing text. Strings are immutable, and `String()` is used for converting data into a string.
`Boolean()`	Represents a logical value (`true` or `false`). `1` means `true`, `0` means `false`.

For Example Number():

const string_num = "7856321456";
const string_num_cher = "33sf";

const demo1= Number(string_num);
const demo2 = Number(string_num_cher);

console.log(demo1)
console.log(demo2)

Output:

7856321456
NaN

Summary:

"43" => 43 
"43abc" => NaN
true => 1 ; false =>0;