Answers for "nodejs how to see if something is undefined"

test if is undefined javascript

let id;

if(typeof id === 'undefined') {
    console.log("id is undefined...");
}

Posted by: Guest on August-10-2020

javascript check if boolean is undefined

if (typeof myFlag !== "undefined") {
  // comes here whether myFlag is true or false but not defined
}

Posted by: Guest on May-02-2020

Code answers related to "nodejs how to see if something is undefined"