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core.ispopulated

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isPopulated() function​

Returns true if the value is a non-empty string, an object with a length property greater than zero, or a non-empty object

Signature:

export declare function isPopulated<T extends {
    length: number;
} | object>(arg: CanBePopulated | undefined | null): arg is T;

Parameters​

Parameter

Type

Description

arg

CanBePopulated | undefined | null

Any value

Returns:

arg is T

True if the value is a non-empty string, an object with a length property greater than zero, or a non-empty object