@yoroi/common/lib/module/utils/hex.js

The Common package of Yoroi SDK

"use strict";

export function hex(value) {
  if (!hex.isHexString(value)) {
    throw new Error('Invalid hex string');
  }
  return {
    get value() {
      return value.toLowerCase();
    },
    get bytes() {
      return new Uint8Array(Buffer.from(value, 'hex'));
    },
    get utf8() {
      return Buffer.from(value, 'hex').toString('utf8');
    },
    equals(other) {
      return this.value === other.value;
    }
  };
}
hex.isHexString = str => /^[0-9a-fA-F]+$/.test(str);
hex.fromUtf8 = str => hex(Buffer.from(str, 'utf8').toString('hex'));
hex.fromBytes = bytes => hex(Buffer.from(bytes).toString('hex'));
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