Use filter() method to check if an array of object includes what we seek

README.MD

GOAL

Use filter() method to check if an array of object includes what we seek via TypeScript Sandbox online: https://typescript-play.js.org/#code/Q

// testing how the out-of-box `filter` for ES6 ecma works without utilities like lodash
// https://typescript-play.js.org/#code/Q
let knownFiles = [
    { file: 'xxx', status: 0 },
    { file: 'yyy', status: 1 }
];

let file='yyy';
console.log(
    knownFiles.filter(row => (row.file === file))
);