32 lines
704 B
Plaintext
32 lines
704 B
Plaintext
=== tests/cases/conformance/expressions/typeGuards/typeGuardsInGlobal.ts ===
|
|
// Note that type guards affect types of variables and parameters only and
|
|
// have no effect on members of objects such as properties.
|
|
|
|
// variables in global
|
|
var num: number;
|
|
>num : number
|
|
|
|
var var1: string | number;
|
|
>var1 : string | number
|
|
|
|
if (typeof var1 === "string") {
|
|
>typeof var1 === "string" : boolean
|
|
>typeof var1 : string
|
|
>var1 : string | number
|
|
>"string" : string
|
|
|
|
num = var1.length; // string
|
|
>num = var1.length : number
|
|
>num : number
|
|
>var1.length : number
|
|
>var1 : string
|
|
>length : number
|
|
}
|
|
else {
|
|
num = var1; // number
|
|
>num = var1 : number
|
|
>num : number
|
|
>var1 : number
|
|
}
|
|
|