How to say this in a more eloquent way, preferably using Lodash:
anObject = {
'a': 'apple',
'b': 'banana'
};
largeArray = ['a', 'c', 'd'];
emptyArray = [];
for (var s = 0; s < largeArray.length; s++) {
if (anObject[largeArray[s]]) {
emptyArray.push(anObject[largeArray[s]]);
}
}
console.log(emptyArray)Should give me:
emptyArray = ['a']
You can get the intersection() from the largeArray and the keys() from the anObject variable to accomplish this.
_.intersection(largeArray, _.keys(anObject));
var anObject = {'a': 'apple', 'b': 'banana'};
var largeArray = ['a','c','d'];
var emptyArray = _.intersection(largeArray, _.keys(anObject));
console.log(emptyArray);<script src="https://cdn.jsdelivr.net/lodash/4.13.1/lodash.min.js"></script>Collected from the Internet
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