const { isArray } = Array;
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const { getPrototypeOf, prototype: objectProto, keys: getKeys } = Object;
|
|
/**
|
* Used in functions where either a list of arguments, a single array of arguments, or a
|
* dictionary of arguments can be returned. Returns an object with an `args` property with
|
* the arguments in an array, if it is a dictionary, it will also return the `keys` in another
|
* property.
|
*/
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export function argsArgArrayOrObject<T, O extends Record<string, T>>(args: T[] | [O] | [T[]]): { args: T[]; keys: string[] | null } {
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if (args.length === 1) {
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const first = args[0];
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if (isArray(first)) {
|
return { args: first, keys: null };
|
}
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if (isPOJO(first)) {
|
const keys = getKeys(first);
|
return {
|
args: keys.map((key) => first[key]),
|
keys,
|
};
|
}
|
}
|
|
return { args: args as T[], keys: null };
|
}
|
|
function isPOJO(obj: any): obj is object {
|
return obj && typeof obj === 'object' && getPrototypeOf(obj) === objectProto;
|
}
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