JavaScript: Round a number to a specified amount of digits
JavaScript fundamental (ES6 Syntax): Exercise-152 with Solution
Write a JavaScript program to round a number to a specified amount of digits.
- Use Math.round() and template literals to round the number to the specified number of digits.
- Omit the second argument, decimals, to round to an integer.
Sample Solution:
JavaScript Code:
//#Source https://bit.ly/2neWfJ2
const round = (n, decimals = 0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
console.log(round(1.005, 2));
console.log(round(1.05, 2));
console.log(round(1.0005, 2));
Sample Output:
1.01 1.05 1
Pictorial Presentation:
Flowchart:

Live Demo:
See the Pen javascript-basic-exercise-152-1 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript program to run a function in a separate thread by using a Web Worker, allowing long running functions to not block the UI.
Next: Write a JavaScript program to reverse the order of the characters in the string.
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