how to round up to nearest even number js code example

Example 1: javascript round to nearest 10

var rounded = Math.round(number / 10) * 10

Example 2: round up javascript

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