Javascript webstorm：“元素未导出”警告是什么意思？
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webstorm: what does "Element is not exported" warning mean?
提问by ya_dimon
if i write such code in webstorm
如果我在 webstorm 中编写这样的代码
export class someOne {
constructor(param) {
this.test = param;
}
useTest(){
return this.test;
}
}
console.log(new someOne(123).useTest());
and mouseover on "this.test" i see the warning: "Element is not exported"
鼠标悬停在“this.test”上，我看到警告：“元素未导出”
what does it mean?
if i change the .testto .test1the warning disappears
这是什么意思？如果我更改.test为.test1警告消失
回答by Fabian
For me it worked to mark all "private" properties with a prefixed underscore. Obviously Webstorm/IntelliJ recognized the properties as something that should not be exported.
对我来说，它可以用前缀下划线标记所有“私有”属性。显然，Webstorm/IntelliJ 将这些属性识别为不应导出的内容。
export class someOne {
constructor(param) {
this._test = param;
}
useTest(){
return this._test;
}
}
console.log(new someOne(123).useTest());
回答by Niels Steenbeek
Webstorm just tries to prevent you adding unspecified attributes. You need to define getters/setters. This prevents adding and grabbing attributes as dirty hacks.
Webstorm 只是试图阻止您添加未指定的属性。您需要定义 getter/setter。这可以防止添加和获取属性作为脏黑客。
Update - added WeakMap to have variables really private.
更新 - 添加了 WeakMap 以使变量真正私有。
let testWeakMap = new WeakMap();
export class someOne {
constructor(param) {
this.test = param;
}
useTest(){
return this.test;
}
get test () {
return testWeakMap.get(this);
}
set test (value) {
testWeakMap.set(this, value);
}
}
console.log(new someOne(123).useTest());
