TypeScript - extract string item from array

In this article, we would like to show you how to search and extract string items from an array in TypeScript.

Quick solution:

const resultArray: type = myArray.filter(element: type => element: boolean === 'string value here ...');

Practical example

In this example, we use Array.prototype.filter() to search for 'C' element in the given array and save the result inside resultArray.

const myArray: string[] = ['A', 'C', 'D', 'C'];
const resultArray: string[] = myArray.filter((element: string): boolean => element === 'C');

console.log(resultArray);

Output:

[ 'C', 'C' ]

References

1. JavaScript - extract string item from array