Javascript Shorthand

Ternary Operator

        //Longhead
        let response;
        if (x < 5){
            response = "You don't have enough cats!"
        } else{
            response = "You have too many cats!"
        }

        //Shorthand
        const response = x < 5 ? "You don't have enough cats!" : "You have too many cats!"

Assign Values to Multiple Variables

        //Longhand
        let x = 143;
        let y = 9;
        let z = 66;

        //Shorthand
        let [x, y, z] = [143, 9, 66];

Arrow Function

        //Longhand
        let square = function(i){
            return i*i;
        }

        //Shorthand
        let square = i => i * i;

Template Literals

        let length = 10;
        let width = 20;

        //Longhead
        console.log("The area of your square is" + length + "*" + width);

        //Shorthand
        console.log(`The area of your square is ${length} * ${width}`);

Multi-line String

        //Longhand
        console.log('In case you were wondering ' + 'There is a franchise of movies ' + 'about tornados ' + 'with sharks ' + 'inside of them.');
        
        //Shorthand
        console.log(`In case you were wondering
        there is a franchise of movies
        about tornados
        with sharks
        inside of them.`);

String into a Number

        let userInput = "28";

        //Longhand
        let age = parseInt(userInput)

        //Shorthand
        let age = +userInput;

Repeat a String

        //Longhand
        let text = '';
        for( let i = 0l i < 10; i++){
            text +="Javascript is fun!";
        }

        //Shorthand
        console.log('Javascript is fun!'.repeat(10));

Substitute for Math.floor()

        let num = 99.99;

        //Longhead
        console.log(Math.floor(num));

        //Shorthand
        console.log(~~num);

Min/Max Numbers in an Array

        let grades = [99, 95, 92, 84, 76, 65, 52, 8];

        //Longhand
        Math.max(99, 95, 92, 84, 76, 65, 52, 8)
        
        //Shorthand
        Math.max(...grades);

Merging of Arrays

        let nineties = [1997, 1998, 1999];

        //Longhand
        let genz = nineties.concat([2000, 2001, 2002]);

        //Shorthand
        let genz = [...nineties, 2000, 2001, 2002];