js math round to 2 decimal code example

Example 1: javascript round decimal 2 digits

var numb = 123.23454;
numb = numb.toFixed(2);

Example 2: javascript round to 2 decimal places

var subTotal="12.1345";// can also be int, float, string
var subTotalFormatted=parseFloat(subTotal).toFixed(2); //"12.13"

Example 3: round to nearest decimal javascript

function round(value, precision) {
    var multiplier = Math.pow(10, precision || 0);
    return Math.round(value * multiplier) / multiplier;
}

Example 4: javascript round to 2 decimal

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

Example 5: round number 2 decimals javascript

Math.round((num + Number.EPSILON) * 100) / 100

Example 6: round to nearest decimal javascript

round(12345.6789, -1) // 12350
round(12345.6789, -2) // 12300

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