File: intersectionTypeMembers.js

package info (click to toggle)
node-typescript 5.0.4%2Bds1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 459,116 kB
  • sloc: javascript: 1,972,754; makefile: 6; sh: 1
file content (105 lines) | stat: -rw-r--r-- 2,242 bytes parent folder | download | duplicates (4)
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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
//// [intersectionTypeMembers.ts]
// An intersection type has those members that are present in any of its constituent types,
// with types that are intersections of the respective members in the constituent types

interface A { a: string }
interface B { b: string }
interface C { c: string }

var abc: A & B & C;
abc.a = "hello";
abc.b = "hello";
abc.c = "hello";

interface X { x: A }
interface Y { x: B }
interface Z { x: C }

var xyz: X & Y & Z;
xyz.x.a = "hello";
xyz.x.b = "hello";
xyz.x.c = "hello";

type F1 = (x: string) => string;
type F2 = (x: number) => number;

var f: F1 & F2;
var s = f("hello");
var n = f(42);

interface D {
    nested: { doublyNested: { d: string; }, different: { e: number } };
}
interface E {
    nested: { doublyNested: { f: string; }, other: {g: number } };
}
const de: D & E = {
    nested: {
        doublyNested: {
            d: 'yes',
            f: 'no'
        },
        different: { e: 12 },
        other: { g: 101 }
    }
}

// Additional test case with >2 doubly nested members so fix for #31441 is tested w/ excess props
interface F {
    nested: { doublyNested: { g: string; } }
}

interface G {
    nested: { doublyNested: { h: string; } }
}

const defg: D & E & F & G = {
    nested: {
        doublyNested: {
            d: 'yes',
            f: 'no',
            g: 'ok',
            h: 'affirmative'
        },
        different: { e: 12 },
        other: { g: 101 }
    }
}


//// [intersectionTypeMembers.js]
// An intersection type has those members that are present in any of its constituent types,
// with types that are intersections of the respective members in the constituent types
var abc;
abc.a = "hello";
abc.b = "hello";
abc.c = "hello";
var xyz;
xyz.x.a = "hello";
xyz.x.b = "hello";
xyz.x.c = "hello";
var f;
var s = f("hello");
var n = f(42);
var de = {
    nested: {
        doublyNested: {
            d: 'yes',
            f: 'no'
        },
        different: { e: 12 },
        other: { g: 101 }
    }
};
var defg = {
    nested: {
        doublyNested: {
            d: 'yes',
            f: 'no',
            g: 'ok',
            h: 'affirmative'
        },
        different: { e: 12 },
        other: { g: 101 }
    }
};