Decision Control Statements in JavaScript

 Conversion function

// conversion

let a = '12.54'

let b = 13

x = Number(a)

console.log(x, typeof x )

console.log(parseFloat(a) )

x = String(b)

// Control Instructions

1. Decision Control - if, else, if else if, conditional operator - Same as C 

2. Iterative Control - while loop, do while loop, for loop, for in loop, for of loop

3. Switch Case Control

// Conditional operator

let x = 8

console.log( x > 10? "Greater than 10": "less than 10")

//switch

let y = 5

switch (y) {

    case 1:

        console.log('Monday');

        break;

    case 2:

        console.log('Tuesday');

        break;

    case 3:

        console.log('Wednesday');

        break;

    case 4:

        console.log('Thursday');

        break;

    case 5:

        console.log('Friday');

        break;

    case 6:

        console.log('Saturday');

        break;

    case 7:

        console.log('Sunday');

        break;

    default:

        break;

}