How to check undefined in Typescript

Question

I am using this code to check undefined variable but it\'s not working.

Answer 1

You can just check for truthy on this:

if(uemail) {
    console.log("I have something");
} else {
    console.log("Nothing here...");
}

Go and check out the answer from here: Is there a standard function to check for null, undefined, or blank variables in JavaScript?

Hope this helps!