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=== tests/cases/conformance/expressions/typeGuards/typeGuardsOnClassProperty.ts ===
// Note that type guards affect types of variables and parameters only and
// have no effect on members of objects such as properties.
// Note that the class's property must be copied to a local variable for
// the type guard to have an effect
class D {
>D : D
data: string | string[];
>data : string | string[]
getData() {
>getData : () => string
var data = this.data;
>data : string | string[]
>this.data : string | string[]
>this : this
>data : string | string[]
return typeof data === "string" ? data : data.join(" ");
>typeof data === "string" ? data : data.join(" ") : string
>typeof data === "string" : boolean
>typeof data : string
>data : string | string[]
>"string" : "string"
>data : string
>data.join(" ") : string
>data.join : (separator?: string) => string
>data : string[]
>join : (separator?: string) => string
>" " : " "
}
getData1() {
>getData1 : () => string
return typeof this.data === "string" ? this.data : this.data.join(" ");
>typeof this.data === "string" ? this.data : this.data.join(" ") : string
>typeof this.data === "string" : boolean
>typeof this.data : string
>this.data : string | string[]
>this : this
>data : string | string[]
>"string" : "string"
>this.data : string
>this : this
>data : string
>this.data.join(" ") : string
>this.data.join : (separator?: string) => string
>this.data : string[]
>this : this
>data : string[]
>join : (separator?: string) => string
>" " : " "
}
}
var o: {
>o : { prop1: string | number; prop2: string | boolean; }
prop1: number|string;
>prop1 : string | number
prop2: boolean|string;
>prop2 : string | boolean
} = {
>{ prop1: "string" , prop2: true } : { prop1: string; prop2: true; }
prop1: "string" ,
>prop1 : string
>"string" : "string"
prop2: true
>prop2 : boolean
>true : true
}
if (typeof o.prop1 === "string" && o.prop1.toLowerCase()) {}
>typeof o.prop1 === "string" && o.prop1.toLowerCase() : string
>typeof o.prop1 === "string" : boolean
>typeof o.prop1 : string
>o.prop1 : string | number
>o : { prop1: string | number; prop2: string | boolean; }
>prop1 : string | number
>"string" : "string"
>o.prop1.toLowerCase() : string
>o.prop1.toLowerCase : () => string
>o.prop1 : string
>o : { prop1: string | number; prop2: string | boolean; }
>prop1 : string
>toLowerCase : () => string
var prop1 = o.prop1;
>prop1 : string | number
>o.prop1 : string | number
>o : { prop1: string | number; prop2: string | boolean; }
>prop1 : string | number
if (typeof prop1 === "string" && prop1.toLocaleLowerCase()) { }
>typeof prop1 === "string" && prop1.toLocaleLowerCase() : string
>typeof prop1 === "string" : boolean
>typeof prop1 : string
>prop1 : string | number
>"string" : "string"
>prop1.toLocaleLowerCase() : string
>prop1.toLocaleLowerCase : () => string
>prop1 : string
>toLocaleLowerCase : () => string
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