124 lines
2.1 KiB
Plaintext
124 lines
2.1 KiB
Plaintext
=== tests/cases/conformance/expressions/binaryOperators/additionOperator/additionOperatorWithUndefinedValueAndValidOperator.ts ===
|
|
// If one operand is the null or undefined value, it is treated as having the type of the other operand.
|
|
|
|
enum E { a, b, c }
|
|
>E : E
|
|
>a : E
|
|
>b : E
|
|
>c : E
|
|
|
|
var a: any;
|
|
>a : any
|
|
|
|
var b: number;
|
|
>b : number
|
|
|
|
var c: E;
|
|
>c : E
|
|
>E : E
|
|
|
|
var d: string;
|
|
>d : string
|
|
|
|
// undefined + any
|
|
var r1: any = undefined + a;
|
|
>r1 : any
|
|
>undefined + a : any
|
|
>undefined : undefined
|
|
>a : any
|
|
|
|
var r2: any = a + undefined;
|
|
>r2 : any
|
|
>a + undefined : any
|
|
>a : any
|
|
>undefined : undefined
|
|
|
|
// undefined + number/enum
|
|
var r3 = undefined + b;
|
|
>r3 : number
|
|
>undefined + b : number
|
|
>undefined : undefined
|
|
>b : number
|
|
|
|
var r4 = undefined + 1;
|
|
>r4 : number
|
|
>undefined + 1 : number
|
|
>undefined : undefined
|
|
|
|
var r5 = undefined + c;
|
|
>r5 : number
|
|
>undefined + c : number
|
|
>undefined : undefined
|
|
>c : E
|
|
|
|
var r6 = undefined + E.a;
|
|
>r6 : number
|
|
>undefined + E.a : number
|
|
>undefined : undefined
|
|
>E.a : E
|
|
>E : typeof E
|
|
>a : E
|
|
|
|
var r7 = undefined + E['a'];
|
|
>r7 : number
|
|
>undefined + E['a'] : number
|
|
>undefined : undefined
|
|
>E['a'] : E
|
|
>E : typeof E
|
|
|
|
var r8 = b + undefined;
|
|
>r8 : number
|
|
>b + undefined : number
|
|
>b : number
|
|
>undefined : undefined
|
|
|
|
var r9 = 1 + undefined;
|
|
>r9 : number
|
|
>1 + undefined : number
|
|
>undefined : undefined
|
|
|
|
var r10 = c + undefined
|
|
>r10 : number
|
|
>c + undefined : number
|
|
>c : E
|
|
>undefined : undefined
|
|
|
|
var r11 = E.a + undefined;
|
|
>r11 : number
|
|
>E.a + undefined : number
|
|
>E.a : E
|
|
>E : typeof E
|
|
>a : E
|
|
>undefined : undefined
|
|
|
|
var r12 = E['a'] + undefined;
|
|
>r12 : number
|
|
>E['a'] + undefined : number
|
|
>E['a'] : E
|
|
>E : typeof E
|
|
>undefined : undefined
|
|
|
|
// undefined + string
|
|
var r13 = undefined + d;
|
|
>r13 : string
|
|
>undefined + d : string
|
|
>undefined : undefined
|
|
>d : string
|
|
|
|
var r14 = undefined + '';
|
|
>r14 : string
|
|
>undefined + '' : string
|
|
>undefined : undefined
|
|
|
|
var r15 = d + undefined;
|
|
>r15 : string
|
|
>d + undefined : string
|
|
>d : string
|
|
>undefined : undefined
|
|
|
|
var r16 = '' + undefined;
|
|
>r16 : string
|
|
>'' + undefined : string
|
|
>undefined : undefined
|
|
|