JavaScript is a powerful language for creating dynamic, interactive websites. Due to its flexibility and versatility, there are many ways to write code to achieve the same functionality. In this article we explore 10 mind-blowing JS code tricks you’ve probably never seen before. These tips will not only blow your mind, but they will also change the way you code forever!
Dynamic HTML content with the InnerHTML property
The InnerHTML property allows you to dynamically change the content of an HTML element. Instead of using document.createElement and appendChild to add content to an element, you can simply assign the new HTML content to the internalHTML property. This makes it incredibly easy for YOU to update the contents of an element without having to directly manipulate the DOM.
< pre >
< script >
document.getElementById('targetElement').innerHTML = '< h1 >New Heading< /h1 >';
< /script >
< /pre >
Generating Unique IDs with UUID
Generating unique identifiers can be difficult, especially when dealing with large datasets or dynamically created items. The UUID (Universal Unique Identifier) library provides a simple and efficient way to generate unique identifiers that are virtually guaranteed to be unique. This can be extremely useful for indexing, key generation, and other data management tasks.
< pre >
< script src="https://cdnjs.cloudflare.com/ajax/libs/uuid/8.3.2/uuid.min.js" >< /script >
< script >
const uniqueID = uuid.v4();
console.log(uniqueID); // Output: e4eaaaf2-d142-11e1-b3e4-080027620cdd
< /script >
< /pre >
Implementing Lazy Initialization with Proxy
The proxy object allows you to create a placeholder for another object and intercept operations such as property lookup, assignment, enumeration and the function call. This can be used for slow initialization where the actual object is not created until it is accessed for the first time. Slow proxy initialization can improve the performance of your application by delaying object creation until it is actually needed.
Destructuring Assignment with Default Values
Nullish Coalescing Operator
Negative Array Indexing
String Interpolation with Template Literals
Promisify Callback Functions
Checking for Array Inclusion
Creating a Debounce Function for Event Handling
Top comments (0)