main
|
Last change
on this file since d24f17c was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
|
Initial commit
|
-
Property mode
set to
100644
|
|
File size:
829 bytes
|
| Line | |
|---|
| 1 | import { curryN } from 'ramda';
|
|---|
| 2 | import isInteger32 from './isInteger32';
|
|---|
| 3 |
|
|---|
| 4 | /**
|
|---|
| 5 | * Checks whether the passed value is {@link https://github.com/getify/You-Dont-Know-JS/blob/9959fc904d584bbf0b02cf41c192f74ff4238581/types-grammar/ch4.md#the-curious-case-of-the-|a sentinel value}.
|
|---|
| 6 | *
|
|---|
| 7 | * @func isSentinelValue
|
|---|
| 8 | * @memberOf RA
|
|---|
| 9 | * @since {@link https://char0n.github.io/ramda-adjunct/2.33.0|v2.33.0}
|
|---|
| 10 | * @category Type
|
|---|
| 11 | * @sig * -> Boolean
|
|---|
| 12 | * @param {*} val The value to test
|
|---|
| 13 | * @return {boolean}
|
|---|
| 14 | * @example
|
|---|
| 15 | *
|
|---|
| 16 | * RA.isSentinelValue(-1); //=> true
|
|---|
| 17 | *
|
|---|
| 18 | * RA.isSentinelValue('-1'); //=> false
|
|---|
| 19 | * RA.isSentinelValue(1); //=> false
|
|---|
| 20 | * RA.isSentinelValue([-1]); //=> false
|
|---|
| 21 | */
|
|---|
| 22 | // eslint-disable-next-line no-bitwise
|
|---|
| 23 | var isSentinelValue = curryN(1, function (val) {
|
|---|
| 24 | return isInteger32(val) && ~val === 0;
|
|---|
| 25 | });
|
|---|
| 26 | export default isSentinelValue; |
|---|
Note:
See
TracBrowser
for help on using the repository browser.
