Filtering An Array Of Objects From An Array Of Strings
I have an array of Strings var allEmojis = [dog, toucan, flamingo, lion, tiger, duck, elephant, zebra]and an array of objects as displayed that I obtained from mongoose. Each obje
Solution 1:
You wrote your allEmojis
without quotes
var allEmojis = [dog, toucan, flamingo, lion, tiger, duck, elephant, zebra]
Array of strings would be
var allEmojis = ["dog", "toucan", "flamingo", "lion", "tiger", "duck", "elephant", "zebra"]
If this is not a problem and allEmojis
really contains a strings, which are in arrayOfObjects
in every object under key object.emoji
, then you can filter intersection of allEmojis
with arrayOfObjects
like so
var filtered = allEmojis.filter(function(e) {
return !!arrayOfObjects.find(function(o) {
return o.emoji === e;
});
};
You can also write it as
var filtered = arrayOfObjects
.filter(function(o) { return allEmojis.includes(o.emoji) })
.map(function(o) { return o.emoji }); // convert objects to strings
which probably has better performance.
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