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Building Reactive Apps with Svelte and Tailwind

Implementing the Filtering Functionality

Explore how to add filtering functionality to a Svelte list view integrated with Tailwind for styling. Learn to create filter components, handle boolean and text inputs, and apply filtering algorithms. Understand dispatching custom events to update filtered data reactively in your application.

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We already have the option to sort the table, but we're missing the other part: filtering. When working with a large dataset, filters let us quickly locate the data relevant to us. In the following example, we've added a Filter component to our header. This is imported from Filter.svelte. Open Filter.svelte to see what we have for the component so far.

module.exports = {
  plugins: {
    tailwindcss: {},
    autoprefixer: {},
  },
}
Create the Filter component

We have a button positioned relatively with a width of 20px. Inside this button, we have an icon for the filter with auto margins horizontally and user-select: none for preventing text selection. The second class is not mandatory, but it is a nice addition for a better user experience. This way, the user won't be able to highlight and select the icon.

Note: mx stands for setting left and right margins, while my stands for setting top and bottom margins. Likewise, px is for left and right padding, while py is for top and bottom paddings.

This image is then toggled through the toggleFilter function. When the filter is toggled on, we display an "X" mark; otherwise, we display the ... ...