Check if a string exist in array-CodePudding

I have the following key StudentMembers[1].active but I need to check if this key exist in the following array

const array= ["StudentMembers.Active","StudentMembers.InActive"]

How to remove the index [1] from StudentMembers[1].active and check if StudentMembers.Active does exist in the array

CodePudding user response：

You can use regex to remove all brackets [<any>] like this:

const key = "StudentMembers[1].active".replace(/\[.*\]/, '');
console.log(key); // Return "StudentMembers.active"

Then you can use .find() to check if array contains the key

const array= ["StudentMembers.Active","StudentMembers.InActive"];
const hasKey = array.find(item => item.toLowerCase() == key.toLowerCase()) ? true : false;
console.log(hasKey); // Return true

It is strongly suggested to use .toLowerCase() so it would match any kind of cases.

Example: https://jsfiddle.net/fhkx9v3n/