question: What is difference between @IsDefined x @IsNotEmpty()?

[mknparreira]

It's not clear to me the main difference between @IsDefined and @IsNotEmpty.

According to documentation, both do the same: It checks if the given value is not empty, !== null, and undefined.

Besides that, doing my research, I noticed that @IsNotEmpty is most used than @IsDefined.

Thus, may I use both or there is some difference that I don´t get it? Thanks for help

[martin-yin]

/**
 * Checks if value is defined (!== undefined, !== null).
 */
export function isDefined(value: any): boolean {
  return value !== undefined && value !== null;
}

/**
 * Checks if given value is not empty (!== '', !== null, !== undefined).
 */
export function isNotEmpty(value: unknown): boolean {
  return value !== '' && value !== null && value !== undefined;
}

The difference between @IsNotEmpty and @IsDefined is that @IsNotEmpty determines whether it is an empty string.

@IsDefined does not judge strings！

[NoNameProvided]

Closing this as answered.

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