@benev/slate/x/tools/data/hex.js

frontend web stuff

/*

256-bit hex ids look like this:

    8ff8dfbc7c994c5439d2dd327b9898aa6796f97fb396e262985f03f868707e32
    6b99284a2c4a1c5f101502bd009f9fb592ca4427e4375155e411ddd07ed9da6b
    2eb73fb00a2b9e38c855b5aa353b530d820a3a2dcea5013b7e4e277ddfe9d0ad

*/
import { Bytes } from "./bytes.js";
export const Hex = {
    string(bytes) {
        return [...bytes]
            .map(byte => byte.toString(16).padStart(2, "0"))
            .join("");
    },
    bytes(string) {
        if (string.length % 2 !== 0)
            throw new Error("must have even number of hex characters");
        const bytes = new Uint8Array(string.length / 2);
        for (let i = 0; i < string.length; i += 2)
            bytes[i / 2] = parseInt(string.slice(i, i + 2), 16);
        return bytes;
    },
    /** generate a random hex string. byteCount defaults to 32. */
    random(byteCount = 32) {
        return this.string(Bytes.random(byteCount));
    },
};
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