Number.isSafeInteger
isSafeInteger – Check whether an integer is in the safe range.
Description
Number.isSafeInteger(integer integer)
Parameters
| Name |
Description |
Type |
Default |
Optional |
| integer |
|
integer |
|
No |
Return values
boolean.
Changelog
| Version |
Description |
| ES 6 |
Introduced. |
Examples
Example #1 – isSafeInteger example
console.log(Number.isSafeInteger(12)); // true
console.log(Number.isSafeInteger(12.42)); // false
console.log(Number.isSafeInteger(12345678901234567890)); // false
console.log(Number.isSafeInteger('12')); // false
console.log(Number.isSafeInteger(NaN)); // false
console.log(Number.isSafeInteger(Infinity)); // false
External references