Javascript 使用typescript（javascipt）映射对象

您好，我想根据这些创建一张地图，如果。。有没有办法创建映射并编写更好的代码

findViewDetailPolicy(policy) {
        if (policy['displayInfo']['displayTypeDetail']['displayType'] === 'STANDARD') {
          this.path = this.policyPathDetailStandard;
          this.router.navigate([this.path]);
        }
        if (policy['displayInfo']['displayTypeDetail']['displayType'] === 'PACCHETTO') {
          this.path = this.policyPathDetailModulare;
          this.router.navigate([this.path]);
        }
        if (policy['displayInfo']['displayTypeDetail']['displayType'] === 'SAVING') {
          this.path = this.policyPathDetailSaving;
          this.router.navigate([this.path]);
        }
        if (policy['displayInfo']['displayTypeDetail']['displayType'] === 'CQ') {
          this.path = this.policyPathDetailCq;
          this.router.navigate([this.path]);
        }
        if (policy['displayInfo']['displayTypeDetail']['displayType'] === 'COLLETTIVA') {
          this.path = this.policyPathDetailCollective;
          this.router.navigate([this.path]);
        }
      }

---

地图可以是这样的：

const mapToPathProp = {
    STANDARD: "policyPathDetailStandard",
    PACCHETTO: "policyPathDetailModulare",
    SAVING: "policyPathDetailSaving",
    CQ: "policyPathDetailCq",
    COLLETTIVA: "policyPathDetailCollective"
};

然后：

findViewDetailPolicy(policy) {
    let pathProp = mapToPathProp[policy.displayInfo.displayTypeDetail.displayType];
    if (pathProp) {
        this.path = this[pathProp];
        this.router.navigate([this.path]);
    }
}

---

您的代码可以归结为：

findViewDetailPolicy(policy) {
    const map = { STANDARD: this.policyPathDetailStandard, ... };
    this.path = map[policy['displayInfo']['displayTypeDetail']['displayType']];
    this.router.navigate([this.path]);
}

---

开关箱可以完成这项工作。检查文档。不是映射，而是更好的方法是尝试将

policy['displayInfo']['displayitypedetail']['displayType']

放入变量中，并以更好的方式编写这些条件const mapToPathProp={STANDARD:“policypathtailstandard”，PACCHETTO:“policypathtailmodulere”，SAVING:“policypathtailsaving”，CQ:“policypathtailcq”，COLLETTIVA:“policyPathDetailCollective”}；在这个对象中。。用哪种方法传递objectI中path的属性我不明白你在问什么<例如，code>pathProp将是“polidyPathDetailStandard”，而

this[pathProp]

将与您执行的

this.polidyPathDetailStandard

一样。这说明了吗？此方法的优点是只创建一次映射，而不是每次调用函数时。此外，当与任何

if

条件不匹配时，接受的答案的行为与您的代码不同。