Wednesday, October 20

Tag: vanilla javascript

Web Tricks

Quick and Simple Search Filter Using Vanilla JavaScript

When building Single Page Applications a feature I frequently find myself adding is a simple search filter. Nothing too in depth, I'll just want a text field to be able to quickly filter over items to find specific ones.I'm going to share what I do, because it's quick to implement, performant enough, and often very helpful.To start with, this technique assumes that the data you're filtering over is in the form of an array of objects. From there it's all standard libarary array and string methods. Our Tools Array.prototype.filter Array.prototype.filter is how we filter our array.As a parameter, it takes a callback that it runs on each item of the array. This callback should return true or false for whether or not it should be a member of the filtered array. let oneToTen = [1, 2, 3, 4,...
Build a state management system with vanilla JavaScript
CSS Tricks

Build a state management system with vanilla JavaScript

Managing state is not a new thing in software, but it’s still relatively new for building software in JavaScript. Traditionally, we’d keep state within the DOM itself or even assign it to a global object in the window. Now though, we’re spoiled with choices for libraries and frameworks to help us with this. Libraries like Redux, MobX and Vuex make managing cross-component state almost trivial. This is great for an application’s resilience and it works really well with a state-first, reactive framework such as React or Vue.How do these libraries work though? What would it take to write one ourselves? Turns out, it’s pretty straightforward and there’s an opportunity to learn some really common patterns and also learn about some useful modern APIs that are available to us. Be...