The "=>" symbol is used in JavaScript to define arrow functions. An arrow function is a shorthand for writing anonymous functions (functions without a name) in JavaScript. Arrow functions provide a more concise syntax compared to regular function expressions and do not have their own "this", ...
What Does JavaScript Mean? Javascript (JS) is a scripting languages, primarily used on the Web. It is used to enhance HTML pages and is commonly found embedded in HTML code. JavaScript is an interpreted language. Thus, it doesn’t need to be compiled. JavaScript renders web pages in an ...
In JavaScript, null is a primitive value that represents the intentional absence of any object value. It's often used to indicate that a variable or property intentionally holds no value or that an object reference points to nothing. null is a distinct value from undefined and has its own ...
"I" - Interface Segregation Principle. This principle says: clients should not be forced to depend upon interfaces that they do not use. What does it mean? This principle says about the interface, but as we know, we don't have interfaces in Javascript. But, in Javascript we have something...
Answer to: What does a question mark mean in JavaScript? By signing up, you'll get thousands of step-by-step solutions to your homework questions...
Strict mode changes some previously-accepted mistakes into errors. JavaScript was designed to be easy for novice developers, and sometimes it gives operations which should be errors non-error semantics. Sometimes this fixes the immediate problem, but sometimes this creates worse problems in the future...
JavaScript void is often used when, inserting an expression into a web page may produce an unwanted side-effect.By using JavaScript:Void(0), you can eliminate the unwanted side-effect, because it will return the undefined primative value....
In this example, we have set javascript: void(0) to the href and added a double-click event to the anchor tag. Only when the user doubles clicks on the tag, does the alert trigger. Here page does not refresh because we have set javascript: void(0). We can not observe the color ch...
4. What is Vanilla JavaScript?As you dig into JavaScript you’ll eventually hear the term “vanilla Javascript.” So what does that mean?Vanilla JavaScript is the JavaScript language “as is” without using any tools to make the coding process easier or more efficient....
I like to use.replace()with a substring parameter whenever I can. It's clear what it does and saves me from having to use Regex. However, whenever I needed to replacealloccurrences of a substring, not just the first one, I had to resort to Regex to get the job done. ...