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crc32-from-arraybuffer

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# CRC32FromArrayBuffer ## Usage ```ts import { crc32FromArrayBuffer } from 'crc32-from-arraybuffer'; // ... const crc: number = crc32FromArrayBuffer(arrayBuffer); // crc is int32 // ... ``` ## References - This code is copied from stackoverflow and made small modify by @snomiao. [How to calculate the CRC of an arrayBuffer (From FileReader in javascript) compatible with the CRC32 function in php? - Stack Overflow]( https://stackoverflow.com/questions/29416900/how-to-calculate-the-crc-of-an-arraybuffer-from-filereader-in-javascript-compa ) Original authors: - [User monstergold - Stack Overflow]( https://stackoverflow.com/users/2030324/monstergold )