using react-chartjs to create a clickable bar chart

chartjs is a popular (58k github stars) charting library which supports many different kinds of charts

react-chartjs is a wrapper for chartjs for react apps. It provides a number of components such as Bar which are easy to use to create charts.

I used react-chartjs 2 days ago to create a clickable bar chart for our hackathon project and it's pretty freaking awesome.

I have 1 simple dataset and needed each bar to be clickable. Took less than 2 hours to use react-chartjs and learn how to get it working. Others on the team were using D3 and that has a much steeper learning curve (although very powerful).

Here's what my chart looks like. Each bar is clickable and calls an onClick handler I passed to the Bar component.







I followed this react-chartjs example but had just 1 dataset (instead of 2 as in the example). 

Here's a gist of the code (I modified a larger file so apologies for any mistakes) which has what you'll need to get it setup and working.


Comments

Post a Comment

Popular posts from this blog

My Reading Lists

I had some time over Christmas and decided to organize my reading lists. Interesting how some time away from daily work allows one to raise up your head   Uncle Bob on Principles of OOd See also book: Agile Principles, Patterns, and Practices in C# Available on Safari Books online. Algorithms in a Nutshell Nine   Algorithms   That Changed   the Future Programming Pearls book: http://www.cs.bell-labs.com/cm/cs/pearls/toc.html 97 Things Every Programmer Should Know Seven L a nguages http://pragprog.com/book/btlang/seven-languages-in-seven-weeks Codys book : http://www.domenlightenment.com/ Principles of OO programming: http://www.nczonline.net/blog/2012/12/18/now-available-principles-of-object-oriented-programming-in-javascript-beta/ Object Oriented programming with Stefan Stoy... Chrome V8 : http://code.google.com/p/v8/ https://developers.google.com/v8/ https://developers.google.com/v8/design - read this Mozilla Javascript page ...
Read more

angular js protractor e2e cheatsheet

Many from the protractor test suite category detailed task syntax example load page load a page browser.get('yoururl') browser btn actions browser back/forward browser.navigate().back() OR browser.navigate().forward() access elements on page See Protractor API list and examples from Protractors test suite access by angular ngmodel name (must match ngmodel in the html) this is the preferred approach element(by.model('person.name')); access by the css id on the page e.g, #user_name (but this can be brittle) element(by.id('user_name')) access angular binding to get generated value i.e. for {{}} element(by.binding('person.concatName')); access angular repeat list data (must match repeat stmt in the html) See Protractor test suit l...
Read more

react-select stacking order bug, z-index, layers and stacking

Image
Had to fix a tricky bug related to react-select recently (our Dropdown component wraps react-select). Here's the how the bug manifested. Dropdown does not overlay dynamically added content below it Variations of this have been reported since 2017. But I tried all the suggestions in the comments and none worked for me. I also tried wrapping the Dropdown in a div and changing z-index to be higher as well as making absolute position but no success. Changing the elements order in the html source and then reordering using flexbox order does work but it breaks the tabbing flow and is not recommended from an accessibility standpoint. One issue is the Dropdown is in a container and is constrained by the containers z-index. No matter how I change the Dropdowns z-index, its container is stacked below the next in stacking order. Google Chrome debugger layers tool provides a cool way to visualize layers. Could be better but helps, check it out below. You have to look closely but you can see h...
Read more