Methods for verifying an empty array element in TypeScript

How can I determine if an element in an array is empty? Currently, it returns false, but I need to know if the element is blank. The array element may contain spaces.

Code

let TestNumber= 'DATA-   -    -'
let arrStr =this.TestNumber.split(/[-]/);
if(arrStr[1]==''){
}

Actual Output: false

Expected Output: true;

 data - ['DATA', '   ', '    ', '']

Answer №1

To ensure accurate results, it is important to trim the whitespace for each element in the array.

let inputArray = stringValue.split(/[-]/).map(item => item.trim());

let stringValue = 'EXAMPLE-   -    -';
let finalArray = stringValue.split(/[-]/).map(item => item.trim());
console.log(finalArray[1] == "");

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