javascript / expert
Snippet
Uint8Array Binary Matcher for Next.js Image Route Testing
Writing custom binary array comparison functions using TypedArray methods enables exact byte-for-byte validation of custom image optimization outputs and media route handlers in Next.js.
snippet.js
javascript
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export function assertBufferEquals(actual: Uint8Array, expected: Uint8Array): boolean {if (actual.byteLength !== expected.byteLength) return false;return actual.every((byte, index) => byte === expected[index]);}
nextjs
Breakdown
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export function assertBufferEquals(actual: Uint8Array, expected: Uint8Array): boolean {
Declares assertion function comparing two Uint8Array instances for equality.
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if (actual.byteLength !== expected.byteLength) return false;
Performs fast check on total byte length before comparing content.
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return actual.every((byte, index) => byte === expected[index]);
Uses Array.prototype.every to confirm byte equality across matching array indexes.
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}
Closes assertBufferEquals function body.