Question

How to check whether a value exists in an array with Array.some() in Node.js

Answer 1

function checkExist(arr, val) {
    return arr.some(arr_value => val === arr_value);
}

const arr = ['Node.js', 'PHP', 'C#', 'Java', 'C++'];
 
if (checkExist(arr, 'Node.js')) {
    console.log("yes");
}
else {
    console.log("no"); 
}


   
/*
run:  
  
yes 
   
*/

 

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