JSFiddle - React, Tailwind, and code Playground

JavaScript

function whatIsInAName(collection, source) {
    var compareArr1 = [];
    var compareArr2 = [];
    var finArr = [];
    var finArr2 = [];

    compareArr1 = Object.keys(source);

    for (const item of collection) {
    	if (compareArr1.every(
      function(x){return item.hasOwnProperty(x)})) {
            finArr.push(item);
        }
    }

    for (const item of finArr) {
        if (compareArr1.some(
        function(x){return 
        item[x] !== source[x]})) {
            continue;
        }
        finArr2.push(item);
    }
    
    console.log(finArr2);
}

whatIsInAName([{ "a": 1, "b": 2 }, { "a": 1 }, { "a": 1, "b": 2, "c": 2 }], { "a": 1, "b": 2 });