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Add new element to array: push vs destructuring, with longer array
(version: 0)
Comparing performance of:
spread operator vs Push
Created:
2 years ago
by:
Guest
Jump to the latest result
Tests:
spread operator
var params = [ "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7]; var other = [ ...params, 'new' ]
Push
var params = [ "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7, "hello", true, 7]; params.push('new');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
spread operator
Push
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll explain the benchmark and its results in detail. **Benchmark Definition:** The benchmark measures the performance of adding a new element to an array using two different approaches: 1. **Push**: This approach uses the `push` method to add a new element to the end of the array. 2. **Spread Operator**: This approach uses the spread operator (`...`) to create a new array and then adds the new element to it. **Options Compared:** The benchmark compares two options: * **Push**: The traditional way of adding an element to an array using `push`. * **Spread Operator**: A newer way of creating arrays in JavaScript, which allows for more concise code and potentially better performance. **Pros and Cons:** **Push:** Pros: * Well-established and widely supported method. * Easy to understand and use for most developers. Cons: * Can be slower than the spread operator due to the overhead of the `push` method. **Spread Operator:** Pros: * More concise code, which can lead to better readability and maintainability. * Potentially faster execution times due to reduced overhead compared to `push`. Cons: * Less widely supported in older browsers or versions of JavaScript. * May be less intuitive for some developers who are not familiar with the spread operator. **Library:** There is no explicit library mentioned in the benchmark definition, but it's likely that the `push` method relies on the JavaScript built-in `Array.prototype.push()` function. The spread operator uses the `Object.entries()`, `SpreadOperator`, and `Array.from()` functions under the hood to create a new array. **Special JS Feature or Syntax:** The benchmark utilizes the **spread operator** feature in modern JavaScript, which was introduced in ECMAScript 2018 (ES2018). This syntax allows for more concise code and better performance compared to traditional methods like `push`. **Other Considerations:** When choosing between the push method and the spread operator, consider the trade-offs: * If you prioritize conciseness and readability over raw execution speed, use the spread operator. * If you need to support older browsers or versions of JavaScript that do not understand the spread operator, use `push`. * In general, if performance is a critical concern for your application, benchmark both approaches to determine which one yields better results. **Benchmark Results:** The latest benchmark results show: * **Push**: 2985505.75 executions per second. * **Spread Operator**: 2850806.75 executions per second. Based on these results, the push method appears to be slightly faster than the spread operator. However, it's essential to note that this difference may be negligible for most use cases, and the spread operator offers significant benefits in terms of code readability and maintainability.
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