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JavaScript - Math.round to 2 decimal places
3 points
In this article, we would like to show you how to round a number to 2 decimal places in JavaScript.
The main concept to get our value rounded to 2 decimal places is to multiply it by 100, round it with Math.round() function and then divide by 100 again.
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const round = (value) => {2
return Math.round(100 * value) / 100; // <----------3
};4
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// Usage example:6
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console.log( round( 1.2345 ) ); // 1.238
console.log( round( -1.2345 ) ); // -1.239
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console.log( round( 12345 ) ); // 1235011
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console.log( round( 5 , 0 ) ); // 513
console.log( round( 5. , 0 ) ); // 514
console.log( round( .5 , 0 ) ); // 1