no-this-before-super
NOTE: this rule is part of the
推荐 rule set.Enable full set in
deno.json:{
"lint": {
"rules": {
"tags": ["推荐"]
}
}
}Enable full set using the Deno CLI:
deno lint --rules-tags=推荐
This rule can be explictly included to or excluded from the rules present in the current tag by adding it to the
include or exclude array in deno.json:{
"lint": {
"rules": {
"include": ["no-this-before-super"],
"exclude": ["no-this-before-super"]
}
}
}不允许在构造函数中调用 super() 前使用 this 或 super。
在派生类的构造函数中，调用 super() 前访问 this 或 super 会导致 ReferenceError。为了防止这种情况，这个 lint 规则检查构造函数中在调用 super() 之前是否访问了 this 或 super。
无效:
class A extends B {
constructor() {
this.foo = 0;
super();
}
}
class C extends D {
constructor() {
super.foo();
super();
}
}
有效:
class A extends B {
constructor() {
super();
this.foo = 0;
}
}
class C extends D {
constructor() {
super();
super.foo();
}
}
class E {
constructor() {
this.foo = 0;
}
}