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30-seconds-of-code/snippets/js/s/to-safe-integer.md
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Value to safe integer snippet javascript
math
pagodas 2020-10-22T20:24:44+03:00

Converts a value to a safe integer.

  • Use Math.max() and Math.min() to find the closest safe value.
  • Use Math.round() to convert to an integer.
const toSafeInteger = num =>
  Math.round(
    Math.max(Math.min(num, Number.MAX_SAFE_INTEGER), Number.MIN_SAFE_INTEGER)
  );
toSafeInteger('3.2'); // 3
toSafeInteger(Infinity); // 9007199254740991