[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [isStringEmpty](./x-components.isstringempty.md) ## isStringEmpty() function Util used to return true if the string is empty, undefined or null. **Signature:** ```typescript export declare function isStringEmpty(str?: string | null): boolean; ``` ## Parameters

Parameter	Type	Description
str	string \| null	_(Optional)_ String value.

**Returns:** boolean Returns true if str is an empty string, undefined or null.