Hi there! Below you'll find 5 neart JavaScript tricks that you can start using today in your projects. Both beginners and more seasoned developers might find it interesting: ### 1. **Debouncing Function Calls** Debouncing is a technique to limit the number of times a function is executed in response to events like scrolling. This can improve performance by ensuring that the function runs a set amount of time after the event has stopped. ```javascript function debounce(func, delay) { let timeoutId; return function(...args) { if (timeoutId) { clearTimeout(timeoutId); } timeoutId = setTimeout(() => { func.apply(this, args); }, delay); }; } // Usage Example window.addEventListener('resize', debounce(() => { console.log('Window resized!'); }, 500)); ``` ### 2. **Creating a Simple Modal** You can create a simple modal dialog with just HTML and JavaScript. Here’s how you can do it: ```html ``` ### 3. **Dynamic Property Names in Objects** You can use computed property names in object literals to create objects with dynamic keys. ```javascript const key = 'name'; const value = 'John'; const obj = { [key]: value, age: 30 }; console.log(obj); // { name: 'John', age: 30 } ``` ### 4. **Detecting Performance with Performance API** You can measure the performance of different parts of your code using the Performance API, which is helpful for identifying bottlenecks. ```javascript console.time("myFunction"); function myFunction() { for (let i = 0; i < 1e6; i++) { // Some time-consuming operation } } myFunction(); console.timeEnd("myFunction"); // Logs the time taken to execute `myFunction` ``` ### 5. **Prototypal Inheritance** You can utilize JavaScript’s prototypal inheritance to create a simple class-like structure. ```javascript function Animal(name) { this.name = name; } Animal.prototype.speak = function() { console.log(`${this.name} makes a noise.`); }; function Dog(name) { Animal.call(this, name); // Call parent constructor } // Inheriting from Animal Dog.prototype = Object.create(Animal.prototype); Dog.prototype.constructor = Dog; Dog.prototype.speak = function() { console.log(`${this.name} barks.`); }; const dog = new Dog('Rex'); dog.speak(); // "Rex barks." ``` Hopefully, you've learnt something new today. Have a nice day!

fourhtyoz

Five cool JavaScript tricks

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