Function isNotUndefined

isNotUndefined<T>(this: void, x: T | undefined): x is T
Verifies that the given value is not undefined. This especially helps with a .filter
Type Parameters
- T
Parameters
- this: void
- x: T | undefined
Returns x is T
Example
```
const values: (number | undefined)[] = [1, 2, undefined, 4];
const definedValues: number[] = values.filter(isNotUndefined);
// definedValues is now of type number[]
```
See
- isUndefined
- isNotNull
- Defined in src/util/assert.ts:36