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📄 createWorkerBlobUrl

📊 Analysis Summary

Metric	Count
🔧 Functions	1
📦 Imports	2

📚 Table of Contents

• Imports
• Functions

🛠️ File Location:

📂 packages/core/useWebWorkerFn/lib/createWorkerBlobUrl.ts

📦 Imports

Name	Source
depsParser	./depsParser
jobRunner	./jobRunner

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Functions

createWorkerBlobUrl(fn: Function, deps: string[], localDeps: Function[]): string

Converts the "fn" function into the syntax needed to be executed within a web worker

Parameters:

• fn any: the function to run with web worker
• deps any: array of strings, imported into the worker through "importScripts"
• localDeps any: array of function, local dependencies

Returns: undefined a blob url, containing the code of "fn" as a string

Examples:

createWorkerBlobUrl((a,b) => a+b, [])
// return "onmessage=return Promise.resolve((a,b) => a + b)
.then(postMessage(['SUCCESS', result]))
.catch(postMessage(['ERROR', error])"

Raw JSDoc

/**
 * Converts the "fn" function into the syntax needed to be executed within a web worker
 *
 * @param fn the function to run with web worker
 * @param deps array of strings, imported into the worker through "importScripts"
 * @param localDeps array of function, local dependencies
 *
 * @returns a blob url, containing the code of "fn" as a string
 *
 * @example
 * createWorkerBlobUrl((a,b) => a+b, [])
 * // return "onmessage=return Promise.resolve((a,b) => a + b)
 * .then(postMessage(['SUCCESS', result]))
 * .catch(postMessage(['ERROR', error])"
 */

Calls:

• depsParser (from ./depsParser)
• URL.createObjectURL

Code

function createWorkerBlobUrl(fn: Function, deps: string[], localDeps: Function[]) {
  const blobCode = `${depsParser(deps, localDeps)}; onmessage=(${jobRunner})(${fn})`
  const blob = new Blob([blobCode], { type: 'text/javascript' })
  const url = URL.createObjectURL(blob)
  return url
}

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