var arr = [{

    type: 'This Thing'

}, {

    type: 'Something Else'

}];

var arr2 = [{

    type: 'SomethingElse'

}, {

    type: 'Something Else'

}]

​

function _find(items) {

    let hasThisThing = false;

    let hasSomethingElse = false;

​

    return arr.find(item => {

        const isThisThing = item.type === 'This Thing';

        hasThisThing = hasThisThing || isThisThing;

        hasSomethingElse = hasSomethingElse || !isThisThing;

​

        return hasThisThing && hasSomethingElse;

    });

}

​

function _some(items) {

    let hasThisThing = arr.some(item => item.type === 'This Thing');

    let hasSomethingElse;

    if (hasThisThing) {

        hasSomethingElse = arr.some(item => item.type !== 'This Thing');

    }

​

    return hasThisThing && hasSomethingElse;

}