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How to use moduleBlobUrl method in wpt

Best JavaScript code snippet using wpt

blob-url.any.js

Source:blob-url.any.js

1// META: global=window,dedicatedworker,sharedworker,dedicatedworker-module,sharedworker-module2function objectUrlFromModule(module) {3  const blob = new Blob([module], { type: "text/javascript" });4  return URL.createObjectURL(blob);5}6const moduleText = `export const foo = "bar";`;7promise_test(async (t) => {8  const moduleBlobUrl = objectUrlFromModule(moduleText);9  t.add_cleanup(() => URL.revokeObjectURL(moduleBlobUrl));10  const module = await import(moduleBlobUrl);11  assert_equals(module.foo, "bar");12}, "Blob URLs are supported in dynamic imports");13promise_test(async (t) => {14  const moduleBlobUrl = objectUrlFromModule(moduleText);15  t.add_cleanup(() => URL.revokeObjectURL(moduleBlobUrl));16  const module1 = await import(moduleBlobUrl);17  const module2 = await import(moduleBlobUrl);18  assert_equals(module1, module2);19}, "Identical blob URLs resolve to the same module");20promise_test(async (t) => {21  const moduleBlob = new Blob([moduleText], { type: "text/javascript" });22  const moduleBlobUrl1 = URL.createObjectURL(moduleBlob);23  const moduleBlobUrl2 = URL.createObjectURL(moduleBlob);24  t.add_cleanup(() => {25    URL.revokeObjectURL(moduleBlobUrl1);26    URL.revokeObjectURL(moduleBlobUrl2);27  });28  const module1 = await import(moduleBlobUrl1);29  const module2 = await import(moduleBlobUrl2);30  assert_not_equals(module1, module2);31}, "Different blob URLs pointing to the same blob resolve to different modules");32promise_test(async (t) => {33  const moduleBlobUrl = objectUrlFromModule(moduleText);34  URL.revokeObjectURL(moduleBlobUrl);35  await promise_rejects_js(t, TypeError, import(moduleBlobUrl));36}, "A revoked blob URL will not resolve");37promise_test(async () => {38  const moduleBlobUrl = objectUrlFromModule(moduleText);39  const module1 = await import(moduleBlobUrl);40  URL.revokeObjectURL(moduleBlobUrl);41  const module2 = await import(moduleBlobUrl);42  assert_equals(module1, module2);43}, "A revoked blob URL will resolve if it's already in the module graph");44promise_test(async () => {45  const moduleBlobUrl = objectUrlFromModule(moduleText);46  const importPromise = import(moduleBlobUrl);47  URL.revokeObjectURL(moduleBlobUrl);48  const module = await importPromise;49  assert_equals(module.foo, "bar");...

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