Code:
class Example {
private server: string;
constructor() {
this.setServer();
}
setServer(): void {
this.server = 'server';
}
}
new Example();
Error:
⨯ Unable to compile TypeScript:
src/index.ts:309:13 - error TS2564: Property 'server' has no initializer and is not definitely assigned in the constructor.
309 private server: string;
~~~~~~
Why is TypeScript not complying with the code?
Regrettably, it does not delve deeply and only checks the constructor in the event that someone overrides the setServer method, resulting in the removal of initialization.
There are several options you can consider:
!.class Example1 {
private server: string;
constructor() {
this.server = 'server'; // <- here
}
}
new Example1();
class Example2 {
private server!: string; // <- here
constructor() {
this.setServer();
}
setServer(): void {
this.server = 'server';
}
}
new Example2();
class Example3 {
private server: string = '';
constructor() {
this.setServer();
}
setServer(): void {
this.server = 'server';
}
}
new Example3();
class Example4 {
private server?: string;
constructor() {
this.setServer();
}
setServer(): void {
this.server = 'server';
}
}
new Example4();
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