Run results for: for in vs reduce vs pick

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:70.0) Gecko/20100101 Firefox/70.0

Browser: Firefox 70

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 4 years ago

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

for in
const TEXT_PROPS_TO_BLOCK = [ 'display', 'textColor', 'verticalAlign', 'className', 'style', ]; const propsToTest = { "aria-label": "ordered list", "data-test": "something", "textColor": "foo", "className": "bar" } let allowedProps = {}; for (let p in propsToTest) { if (!TEXT_PROPS_TO_BLOCK.includes(p)) { allowedProps = {[p]: propsToTest[p], ...allowedProps}; } }
reduce
const TEXT_PROPS_TO_BLOCK = [ 'display', 'textColor', 'verticalAlign', 'className', 'style', ]; const propsToTest = { "aria-label": "ordered list", "data-test": "something", "textColor": "foo", "className": "bar" } const newList = Object.keys(propsToTest).reduce((newObj, key) => { if (!TEXT_PROPS_TO_BLOCK.includes(key)) { newObj[key] = propsToTest[key]; } return newObj; }, {});
pick
const TEXT_PROPS_TO_BLOCK = [ 'display', 'textColor', 'verticalAlign', 'className', 'style', ]; const propsToTest = { "aria-label": "ordered list", "data-test": "something", "textColor": "foo", "className": "bar" } _.pick( propsToTest, Object.keys(propsToTest).filter(prop => !TEXT_PROPS_TO_BLOCK.includes(prop)) );