How to print Null value Using JavaScript ?

In JavaScript, if you want to print the string “null” when a variable is null, you can do so add in !== operator.

Benefits of Using if-else Statements:

  1. Clarity: The code is easy to read and understand. It clearly communicates the intention: if the public key is present, display it; otherwise, display a default message.
  2. Error Avoidance: Handling null values prevents unexpected errors that might occur when trying to use null data.
  3. User-Friendly: Displaying a meaningful message like “No key available” instead of a blank space or undefined value enhances the user experience.
  4. Maintainability: The code can be easily maintained and updated, even by developers who didn’t originally write it, thanks to its readability.

Example:-

if (html.data.pubkey !== null) {
    $('#key_name').html(html.data.pubkey);
} else {
    $('#key_name').html('NULL');
}

2nd step go to blade page and use ID where you want to show the data

<span id="key_name"></span>

Output :-

Hi I am Amit Kumar Thakur Experienced as s Software Developer with a demonstrated history of working in the information technology and services industry. Skilled in HTML, CSS, Bootstrap4, PHP, Laravel-9 , REST API,FB API,Google API, Youtube Api, Bitbucket,Github,Linux and jQuery. Strong engineering professional focused in Computer/Information Technology Administration and Management. Currently my profile is to Software Developer, analyze the requirement, creating frame for web application, coding and maintenance.

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