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compare null
(version: 0)
test
Comparing performance of:
({}) !== null; vs ({}) != null;
Created:
3 years ago
by:
Guest
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Tests:
({}) !== null;
({}) !== null;
({}) != null;
({}) !== null;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
({}) !== null;
({}) != null;
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help explain the benchmark and its results. **What is being tested?** The benchmark tests whether JavaScript expressions of the form `({}) !== null` or `({}) != null` evaluate to true (i.e., are not equal to `null`). The focus is on how different browsers compare these values. **Options compared:** There are two variations: 1. **`!==`**: Uses the non-equal comparison operator, which checks if the value on the left is not equal to the value on the right. 2. **`!=`**: Uses the strict inequality operator, which also checks for non-equality but can be less efficient than `!==` in some cases. **Pros and Cons:** * **`!==`**: The most common way to compare values in JavaScript. It has better browser support and is generally faster. * Pros: Wide support across browsers, fast execution * Cons: None notable * **`!=`**: An older way of comparing values. Although still supported by modern browsers, it may be slower than `!==`. * Pros: Familiar syntax for developers familiar with older versions of JavaScript * Cons: Less efficient and less supported in new browsers **Library and Purpose (None)** There are no libraries involved in this benchmark. **Special JS Feature or Syntax (None)** There is no special feature or syntax used in these test cases. They use standard JavaScript syntax for comparison operators. **Alternatives** If you want to compare values in a different way, you might consider using: * `===` for equality checks * `!==` as the most efficient non-equality check * Regular expressions (`RegExp.test`) if you need more complex pattern matching
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