Function isHexString

js/src/static_dependencies/ethers/utils/data.js:53–64

(value, length)

 *  bytes of data (e.g. ``0x1234`` is 2 bytes).
 */
export function isHexString(value, length) {
    if (typeof (value) !== "string" || !value.match(/^0x[0-9A-Fa-f]*$/)) {
        return false;
    }
    if (typeof (length) === "number" && value.length !== 2 + 2 * length) {
        return false;
    }
    if (length === true && (value.length % 2) !== 0) {
        return false;
    }
    return true;
}
/**
 *  Returns true if %%value%% is a valid representation of arbitrary
 *  data (i.e. a valid [[DataHexString]] or a Uint8Array).