Typescript ⌨️

Documentation

• Typescript in 5 Minutes↗️

Examples

• Casting in Typescript: let result: RsItem = await response.json() as RsItem
• Typescript forEach↗️

    let num = [7, 8, 9];
    num.forEach(function (value) {
        console.log(value);
    }); 

or

    let num = [7, 8, 9];
    num.forEach((value) => {
        console.log(value);
        // can add other statements
    }); 

or

    let num = [7, 8, 9];
    num.forEach((value) => console.log(value)); 

With index:

    let num = [7, 8, 9];
    num.forEach((value, index) => console.log(value, index)); 

• typescript map↗️

const numbers = [1, 4, 9];
const roots = numbers.map((num) => Math.sqrt(num));
console.log(`numbers: ${numbers}`); // numbers: 1,4,9
console.log(`roots: ${roots}`); // roots: 1,2,3

Javascript Books

• JavaScript for impatient programmers - ES2022 edition by Dr. Axel Rauschmayer
• Modern JavaScript for the Impatient by Cay S. Horstmann - available at Oreilly