Method hasFunction

lib.commonjs/abi/interface.js:443–445

* Returns true if %%key%% (a function selector, function name or * function signature) is present in the ABI. * * In the case of a function name, the name may be ambiguous, so * accessing the [[FunctionFragment]] may require refinement.

(key)

     *  accessing the [[FunctionFragment]] may require refinement.
     */
    hasFunction(key) {
        return !!this.#getFunction(key, null, false);
    }
    /**
     *  Get the [[FunctionFragment]] for %%key%%, which may be a function
     *  selector, function name or function signature that belongs to the ABI.