File: isArray.js

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node-typescript 4.9.5%2Bds1-2
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//// [isArray.ts]
var maybeArray: number | number[];


if (Array.isArray(maybeArray)) {
    maybeArray.length; // OK
}
else {
    maybeArray.toFixed(); // OK
}

//// [isArray.js]
var maybeArray;
if (Array.isArray(maybeArray)) {
    maybeArray.length; // OK
}
else {
    maybeArray.toFixed(); // OK
}