round in javascript

// Use Math.ceil()
Math.ceil(1.2); // --> 2

Math.round(1.5); // --> 2
Math.round(1.4); // --> 1
Math.floor(1.8); // --> 1

Math.round(3.14159 * 100) / 100  // 3.14

3.14159.toFixed(2);              // 3.14 returns a string
parseFloat(3.14159.toFixed(2));  // 3.14 returns a number

Math.round(3.14159)  // 3
Math.round(3.5)      // 4
Math.floor(3.8)      // 3
Math.ceil(3.2)       // 4

//There are meny ways of rounding...
Math.floor(5.5) //Answer 5, it alwas rounds down.
Math.round(5.5) //Answer 6, it simpily rounds to the closest whole number.
Math.ceil(5.5) //Answer 6, it alwas rounds up.

//You can do more things too...
Math.floor(5.57 * 10) / 10 //Answer 5.5, the number turns into 55.7, Then gets floored (55.0), Then gets divied, (5.5).

var avg=10.55;
console.log(Math.round(avg)); //Prints 11

Math.round(3.14159 * 100) / 100  // 3.14

3.14159.toFixed(2);              // 3.14 returns a string
parseFloat(3.14159.toFixed(2));  // 3.14 returns a number

//rounds a number  to the nearest integer
Math.round(2.6); // 3
Math.round(2.49); //2
Math.round(2.5); //3

let xo =7.45;
xo = Math.round(xo);
// output = 7;

Math.round(2.5);
 

Math.round(var);