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TypeScript - check if string is empty
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In this article, we would like to show you how to check if string is empty in TypeScript.
Quick solution:
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const myString: string = '';2
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if (myString === '') {4
console.log('myString is empty');5
} else {6
console.log('myString is not empty');7
}
In this example, we create a custom function that checks if the string is empty.
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const isEmpty = (text: string): boolean => {2
return text ? false : true;3
};4
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console.log(isEmpty('')); // true6
console.log(isEmpty('sample text')); // falseNote:
This solution can be used to check if the string is
nullorundefinedtoo.
