Checking if a value exists in JavaScript Object

Question

Learning JSX here and I was wondering if theres a way to check if a value appears in a object in JavaScript

i.e We have an obj: anObj ={ myFoo : "MONDAY;TUESDAY;WEDNESDAY" }

How could I check if monday etc appears in this object?

can you specify if you know at which level of nesting you want to look for it ? — Alaa Eddine Cherif
– Alaa Eddine Cherif, Commented Aug 8, 2022 at 13:38
This is neither a React or JSX issue. Just use JS to check to see if anObj.myFoo includes 'MONDAY'. — Andy
– Andy, Commented Aug 8, 2022 at 13:39
Does this answer your question? How to check whether a string contains a substring in JavaScript? — kemicofa
– kemicofa, Commented Aug 8, 2022 at 13:39

Grant Solomons · Accepted Answer · 2022-08-08 13:43:10Z

2

You can find the value in Object.values with .includes()

let valueExists = Object.values(obj).includes("value you looking for");

answered Aug 8, 2022 at 13:43

Grant Solomons

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