math.round js
//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).
Log in, to leave a comment
3.88
8
let x = 2.960024578;
let res = x.toFixed(2);
console.log(res);
//2,96
Thank you!
8
3.88
(8 Votes)
0
4
10
function round(num, places) {
num = parseFloat(num);
places = (places ? parseInt(places, 10) : 0)
if (places > 0) {
let length = places;
places = "1";
for (let i = 0; i < length; i++) {
places += "0";
places = parseInt(places, 10);
}
} else {
places = 1;
}
return Math.round((num + Number.EPSILON) * (1 * places)) / (1 * places)
}
round(1.005, 2); // 1.01
round(1.005, "1"); // 1
round("1.23", 1); // 1.2
round("1.436", "2"); // 1.44
Thank you!
10
4
(10 Votes)
0
0
7
// rounds the result to the closest integer
//syntax Math.round(x);
console.log(Math.round(0.9));
// expected output: 1
console.log(Math.round(5.95), Math.round(5.5), Math.round(5.05));
// expected output: 6 6 5
console.log(Math.round(-5.05), Math.round(-5.5), Math.round(-5.95));
// expected output: -5 -5 -6
Thank you!
7
0
0
3.5
6
//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)
Thank you!
6
3.5
(6 Votes)
0
4
9
var avg=10.55;
console.log(Math.round(avg)); //Prints 11
Thank you!
9
4
(9 Votes)
0
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