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(ColorfulCakeChen) delayValue 8
(version: 8)
Comparing performance of:
1 seconds vs 5 seconds
Created:
3 years ago
by:
Registered User
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Script Preparation code:
function delayedValue( milliseconds, value ) { return new Promise( ( resolve /*, reject*/ ) => { setTimeout( () => resolve( value ), milliseconds ); } ); } function createBlobObjectURL( milliseconds, value ) { let codes = `` + `function delayedValue( milliseconds, value ) {\n` + ` return new Promise( ( resolve /*, reject*/ ) => {\n` + ` setTimeout( () => resolve( value ), milliseconds );\n` + ` } );\n` + `}\n` + `await delayedValue( ${milliseconds}, ${value} );` ; let blob = new Blob( [ codes ], { type: "text/javascript" } ); let theBlobObjectURL = URL.createObjectURL( blob ); return theBlobObjectURL; }
Tests:
1 seconds
let theBlobObjectURL = createBlobObjectURL( 1 * 1000, 1 ); import( theBlobObjectURL ); URL.revokeObjectURL( theBlobObjectURL );
5 seconds
let theBlobObjectURL = createBlobObjectURL( 5 * 1000, 2 ); import( theBlobObjectURL ); URL.revokeObjectURL( theBlobObjectURL );
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
1 seconds
5 seconds
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON and explain what is tested, the options compared, pros and cons of each approach, and other considerations. **Benchmark Definition** The benchmark definition represents a JavaScript function that creates a Blob object URL using the `createBlobObjectURL` function. This function generates a JavaScript code snippet that defines the `delayedValue` function, which returns a promise that resolves after a specified delay. ```json "Script Preparation Code": "function delayedValue( milliseconds, value ) {\r\n return new Promise( ( resolve /*, reject*/ ) => {\r\n setTimeout( () => resolve( value ), milliseconds );\r\n } );\r\n}\r\n\r\nfunction createBlobObjectURL( milliseconds, value ) {\r\n let codes = ``\r\n + `function delayedValue( milliseconds, value ) {\\n`\r\n + ` return new Promise( ( resolve /*, reject*/ ) => {\\n`\r\n + ` setTimeout( () => resolve( value ), milliseconds );\\n`\r\n + ` } );\\n`\r\n + `}\\n`\r\n + `await delayedValue( ${milliseconds}, ${value} );`\r\n ;\r\n\r\n let blob = new Blob( [ codes ], { type: \"text/javascript\" } );\r\n let theBlobObjectURL = URL.createObjectURL( blob );\r\n return theBlobObjectURL;\r\n}\r\n" ``` **Options Compared** The benchmark definition compares two approaches: 1. **Inline JavaScript**: The `createBlobObjectURL` function generates a JavaScript code snippet that is embedded directly into the `codes` variable. 2. **External JavaScript file**: The generated JavaScript code is written to a separate file, which is then referenced by the `blob` object. **Pros and Cons** * **Inline JavaScript**: + Pros: Reduced memory usage, as no additional file is created. + Cons: Increased complexity, as the generated JavaScript code needs to be parsed and executed. * **External JavaScript file**: + Pros: Easier maintenance, as changes can be made to the external file without affecting the `createBlobObjectURL` function. + Cons: Increased memory usage, as an additional file is created. **Other Considerations** * The benchmark definition uses promises to simulate asynchronous behavior. This makes it easier to test performance under different conditions. * The `createBlobObjectURL` function uses the `URL.createObjectURL()` method to create a blob object URL. This allows the generated JavaScript code to be executed in a sandboxed environment. **Library: URL** The `URL` library is used to create a blob object URL. The `URL.createObjectURL()` method takes an array of byte-like values (in this case, a string containing JavaScript code) as input and returns a URL that can be used to access the blob. **Special JS Feature/Syntax** * **Template literals**: The `createBlobObjectURL` function uses template literals to generate the JavaScript code snippet. This feature is available in modern JavaScript engines. * **Await syntax**: The benchmark definition uses the `await` keyword to simulate asynchronous behavior. This feature is also available in modern JavaScript engines. **Alternatives** Other alternatives for creating blob object URLs include: * Using a separate library, such as `jszip` * Creating a custom function to generate the URL * Using a different approach, such as using the `fetch()` API with a blob as the response
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(ColorfulCakeChen) Measure That Async () 7
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