how to round a number in javascript code example
Example 1: how to displayan inteiger to a tenth in javascript
Math.round(3.14159 * 100) / 100
3.14159.toFixed(2);
parseFloat(3.14159.toFixed(2));
Math.round(3.14159)
Math.round(3.5)
Math.floor(3.8)
Math.ceil(3.2)
Example 2: js rounding
Math.floor(5.5)
Math.round(5.5)
Math.ceil(5.5)
Math.floor(5.57 * 10) / 10
Example 3: rounding off in javascript
var avg=10.55;
console.log(Math.round(avg));
Example 4: javascript round
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);
round(1.005, "1");
round("1.23", 1);
round("1.436", "2");
Example 5: how to use math.round
Math.floor(5.5)
Math.round(5.5)
Math.ceil(5.5)
Math.floor(5.57 * 10) / 10