TypeScript/tests/baselines/reference/controlFlowBinaryOrExpression.types at ead264af96d93385aff9296815cb5b36431613e5 · Zzzen/TypeScript · GitHub

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=== tests/cases/conformance/controlFlow/controlFlowBinaryOrExpression.ts ===
let x: string | number | boolean;
>x : string | number | boolean

let cond: boolean;
>cond : boolean

(x = "") || (x = 0);
>(x = "") || (x = 0) : 0
>(x = "") : ""
>x = "" : ""
>x : string | number | boolean
>"" : ""
>(x = 0) : 0
>x = 0 : 0
>x : string | number | boolean
>0 : 0

x; // string | number
>x : string | number

x = "";
>x = "" : ""
>x : string | number | boolean
>"" : ""

cond || (x = 0);
>cond || (x = 0) : true | 0
>cond : boolean
>(x = 0) : 0
>x = 0 : 0
>x : string | number | boolean
>0 : 0

x; // string | number
>x : string | number

export interface NodeList {
    length: number;
>length : number
}

export interface HTMLCollection {
    length: number;
>length : number
}

declare function isNodeList(sourceObj: any): sourceObj is NodeList;
>isNodeList : (sourceObj: any) => sourceObj is NodeList
>sourceObj : any

declare function isHTMLCollection(sourceObj: any): sourceObj is HTMLCollection;
>isHTMLCollection : (sourceObj: any) => sourceObj is HTMLCollection
>sourceObj : any

type EventTargetLike = {a: string} | HTMLCollection | NodeList;
>EventTargetLike : EventTargetLike
>a : string

var sourceObj: EventTargetLike = <any>undefined;
>sourceObj : EventTargetLike
><any>undefined : any
>undefined : undefined

if (isNodeList(sourceObj)) {
>isNodeList(sourceObj) : boolean
>isNodeList : (sourceObj: any) => sourceObj is NodeList
>sourceObj : { a: string; }

    sourceObj.length;
>sourceObj.length : number
>sourceObj : { a: string; } & NodeList
>length : number
}

if (isHTMLCollection(sourceObj)) {
>isHTMLCollection(sourceObj) : boolean
>isHTMLCollection : (sourceObj: any) => sourceObj is HTMLCollection
>sourceObj : { a: string; }

    sourceObj.length;
>sourceObj.length : number
>sourceObj : { a: string; } & HTMLCollection
>length : number
}

if (isNodeList(sourceObj) || isHTMLCollection(sourceObj)) {
>isNodeList(sourceObj) || isHTMLCollection(sourceObj) : boolean
>isNodeList(sourceObj) : boolean
>isNodeList : (sourceObj: any) => sourceObj is NodeList
>sourceObj : { a: string; }
>isHTMLCollection(sourceObj) : boolean
>isHTMLCollection : (sourceObj: any) => sourceObj is HTMLCollection
>sourceObj : { a: string; }

    sourceObj.length;
>sourceObj.length : number
>sourceObj : { a: string; } & NodeList
>length : number
}