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=== tests/cases/compiler/isArray.ts ===
var maybeArray: number | number[];
>maybeArray : number | number[]
if (Array.isArray(maybeArray)) {
>Array.isArray(maybeArray) : boolean
>Array.isArray : (arg: any) => arg is any[]
>Array : ArrayConstructor
>isArray : (arg: any) => arg is any[]
>maybeArray : number | number[]
maybeArray.length; // OK
>maybeArray.length : number
>maybeArray : number[]
>length : number
}
else {
maybeArray.toFixed(); // OK
>maybeArray.toFixed() : string
>maybeArray.toFixed : (fractionDigits?: number) => string
>maybeArray : number
>toFixed : (fractionDigits?: number) => string
}
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