Search for a value in an object array. (vanilla Javascript) [duplicate]

Question

I have an array of objects(about 10 objects) with 2 properties having their respective values.

I want to check if another value of the same property exists or not.

How can i do that ?

For example

array = [{'family':'Roboto', 'type': 'Google'}, ......]

I want to search 'Roboto'. How do i do ?

EDIT:-
I am using Google Fonts API to get all the Google fonts into a single array. I have succeeded in that. Codepen. I store an array with the 'family' and 'url' of each font.

Now i want the user to search for a font. If the font is found, do something, else "Font not found"

How can i acheive this ?

Note:- A solution provided would be helpful.

Use Array.prototype.filter()

Casimir et Hippolyte
– Casimir et Hippolyte

2017-05-18 09:16:07 +00:00
Commented May 18, 2017 at 9:16 — Casimir et Hippolyte
– Casimir et Hippolyte, Commented May 18, 2017 at 9:16
Use Array.prototype.some()

Bergi
– Bergi

2017-05-18 09:17:30 +00:00
Commented May 18, 2017 at 9:17 — Bergi
– Bergi, Commented May 18, 2017 at 9:17

schaffioverflow · Accepted Answer · 2017-05-18 09:17:17Z

0

If you want to find all appearance use: https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Array/filter

If you want to find the first appearance use: https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Array/find

answered May 18, 2017 at 9:17

schaffioverflow

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4 Comments

Bergi Over a year ago

Neither of them does "check if another value of the same property exists or not"

schaffioverflow Over a year ago

I don't understand you? For example if he filter and his callback return an entry another value is found with this property. Or do I understand something wrong?

Bergi Over a year ago

"check" and "or not" implies that he's looking for a boolean result value

schaffioverflow Over a year ago

Ok sorry, I didn't know of the existence of your function. :) I would just checking the length of the resulting array. But yours are nice to know. Thanks for that!

Seunghaekim · Accepted Answer · 2017-05-18 09:17:23Z

-1

That object is in the array, so array[0].family will return Roboto. or Just Declare the array like this: array = Object{..}. maybe I think array = array[0]; console.log(array.familly) will works too.

answered May 18, 2017 at 9:17

Seunghaekim

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