chrome-devtools-frontend
Version:
Chrome DevTools UI
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text/typescript
// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* This is useful to keep TypeScript happy in a test - if you have a value
* that's potentially `null` you can use this function to assert that it isn't,
* and satisfy TypeScript that the value is present.
*/
export function assertNotNull<T>(val: T): asserts val is NonNullable<T> {
if (val === null) {
throw new Error(`Expected given value to not be null but it was: ${val}`);
}
}