1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
=== tests/cases/conformance/jsx/tsxTypeErrors.tsx ===
// A built-in element (OK)
var a1 = <div id="foo" />;
>a1 : any
><div id="foo" /> : any
>div : any
>id : any
// A built-in element with a mistyped property (error)
var a2 = <img srce="foo.jpg" />
>a2 : any
><img srce="foo.jpg" /> : any
>img : any
>srce : any
// A built-in element with a badly-typed attribute value (error)
var thing = { oops: 100 };
>thing : { oops: number; }
>{ oops: 100 } : { oops: number; }
>oops : number
>100 : 100
var a3 = <div id={thing} />
>a3 : any
><div id={thing} /> : any
>div : any
>id : any
>thing : { oops: number; }
// Mistyped html name (error)
var e1 = <imag src="bar.jpg" />
>e1 : any
><imag src="bar.jpg" /> : any
>imag : any
>src : any
// A custom type
class MyClass {
>MyClass : MyClass
props: {
>props : { pt?: { x: number; y: number; }; name?: string; reqd: boolean; }
pt?: { x: number; y: number; };
>pt : { x: number; y: number; }
>x : number
>y : number
name?: string;
>name : string
reqd: boolean;
>reqd : boolean
}
}
// Let's use it
// TODO: Error on missing 'reqd'
var b1 = <MyClass reqd={true} />;
>b1 : any
><MyClass reqd={true} /> : any
>MyClass : typeof MyClass
>reqd : any
>true : true
// Mistyped attribute member
// sample.tsx(23,22): error TS2322: Type '{ x: number; y: string; }' is not assignable to type '{ x: number; y: number; }'.
// Types of property 'y' are incompatible.
// Type 'string' is not assignable to type 'number'.
var b2 = <MyClass pt={{x: 4, y: 'oops'}} />;
>b2 : any
><MyClass pt={{x: 4, y: 'oops'}} /> : any
>MyClass : typeof MyClass
>pt : any
>{x: 4, y: 'oops'} : { x: number; y: string; }
>x : number
>4 : 4
>y : string
>'oops' : "oops"
|
