Question

How to check if an object contains a function in Node.js

Answer 1

const obj = {
  div: (a, b) => {
    return a / b;
  },
};

console.log(typeof obj.div);

console.log(typeof obj.div === 'function' ? "contains a function" : "not contains a function");




/*
run:
 
function
contains a function
  
*/

 

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