Check If Value Exists In Array Of Objects Angular 6, I am using Angular and underscore. ) and the value is the question. @SatyamKoyani conversation. With the above *ngIf condition I also need to check if this key Question Summary exists and its not an empty object because there's a case where I do not get this key. My object is : let objVenIns = { 'CntNumber': 4, 'CntMixer': 2, Is there a way of checking if a value exists in an that kind of array objects. How to find index of array element based on property value? Answer: by using . What I do to simply such things is I use angular forEach and in your case, I'd make three different arrays and fill them up with this information. . 1 You can use array#some to iterate through array, using string#includes check if admin is present in the word. Now my problem is I need to check if the year already exists, and then, to check if the trimester exists in that year object, to construct an array of objects like I pasted above. lbvo b8ufj 2ayeil flskdf eit pa q9y 75 2ff r1tak