“has own propriety javascrip” Code Answer’s

In this article we will learn about some of the frequently asked Javascript programming questions in technical like “has own propriety javascrip” Code Answer’s. When creating scripts and web applications, error handling is an important part. If your code lacks error checking code, your program may look very unprofessional and you may be open to security risks. Error handling in Javascript is simple. An error message with filename, line number and a message describing the error is sent to the browser. This tutorial contains some of the most common error checking methods in Javascript. Below are some solution about “has own propriety javascrip” Code Answer’s.

has own propriety javascrip

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if (someVar.hasOwnProperty('someProperty') ) {

 // do something();

} else {

 // do somethingElse();

}

has own propriety javascrip

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var x = {

    y: 10

};

console.log(x.hasOwnProperty("y")); //true

console.log(x.hasOwnProperty("z")); //false