Lines Matching refs:undefined

452 `0`, `""`, `undefined`, and `NaN` are falsey.
1037 // => undefined
2644 *(*)*: Returns the matched element, else `undefined`.
2690 *(*)*: Returns the matched element, else `undefined`.
4485 _.castArray(undefined);
4486 // => [undefined]
4608 is invoked to produce the cloned value. If `customizer` returns `undefined`,
5151 is invoked to compare values. If `customizer` returns `undefined`, comparisons
5434 is invoked to compare values. If `customizer` returns `undefined`, comparisons
5482 `undefined` and other non-number values.
5501 isNaN(undefined);
5504 _.isNaN(undefined);
5553 Checks if `value` is `null` or `undefined`.
5939 Checks if `value` is `undefined`.
5948 *(boolean)*: Returns `true` if `value` is `undefined`, else `false`.
6337 and `undefined` values. The sign of `-0` is preserved.
6491 `undefined` is returned.
6508 // => undefined
6613 `undefined` is returned.
6630 // => undefined
7040 `undefined`, assignment is handled by the method instead. The `customizer`
7082 `undefined`, assignment is handled by the method instead. The `customizer`
7194 resolve to `undefined`. Source objects are applied from left to right.
7265 *(*)*: Returns the key of the matched element, else `undefined`.
7310 *(*)*: Returns the key of the matched element, else `undefined`.
7559 `undefined`, the `defaultValue` is returned in its place.
7567 3. `[defaultValue]` *(*)*: The value returned for `undefined` resolved values.
7910 destination object. Source properties that resolve to `undefined` are
7953 properties. If `customizer` returns `undefined`, merging is handled by the
8124 3. `[defaultValue]` *(*)*: The value returned for `undefined` resolved values.
8195 invoked to produce the objects of `path`. If `customizer` returns `undefined`
8424 invoked to produce the objects of `path`. If `customizer` returns `undefined`
8928 // => { 'done': true, 'value': undefined }
9416 `undefined` or `0`, a `radix` of `10` is used unless `value` is a
10258 or `undefined`.
10275 _.defaultTo(undefined, 10);
10648 This method returns `undefined`.
10656 // => [undefined, undefined]