优化多分支if，elae-if

function getUserDescribe(name) {
    const describeForNameMap = {
        a: () => console.log("a"),
        b: () => console.log("b"),
        c: () => console.log("c"),
        d: () => console.log("d"),
        e: () => console.log("e"),
    };
    describeForNameMap[name] ? describeForNameMap[name]() : console.log("f");
}