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class Greeter { greeting: string; constructor(message: string) { this.greeting = message; } greet() { return "Hello, " + this.greeting; } } let greeter = new Gree... 阅读全文
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interface SquareConfig { color?: string; width?: number; } interface Point { readonly x: number; readonly y: number; } let a: number[] = [1, 2, 3, 4]; let ro: ReadonlyArray = a; // ro... 阅读全文
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小心作用域规则 小心解构 块级作用域的时间死区 const变量声明原则 阅读全文
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let isDone: boolean = false; let decLiteral: number = 6; let name: string = "bob"; name = "smith"; let list: number[] = [1, 2, 3]; // Declare a tuple type let x: [string, number]; // Initialize it... 阅读全文