![]() Once you've created the folder, open the downloaded archive from step 1 and copy the contents of the dist folder into the jspsych folder. ![]() We'll call this "MyExperiment" for the tutorial. Step 2: Create a folder to store your experiment files ¶Ĭreate a folder on your computer to put the experiment files in. The most recent version can always be found at the top of the GitHub releases page. Start by downloading the latest release of jsPsych. unpkg is an open source fast, global content delivery network for everything on npm. Option 2: Download and host jsPsych ¶ Step 1: Download jsPsych ¶ You should see "Hello world!" printed on the screen, and if you press a key on the keyboard, the text should disappear (ending the trial). Once you've saved the file, open it in a browser. My experiment const jsPsych = initJsPsych () const hello_trial = jsPsych. Option 1: Using CDN-hosted scripts ¶ Step 1: Create an HTML file ¶ This approach allows you to integrate jsPsych into your favorite JavaScript frameworks and get the benefits of TypeScript, bundlers, and more. You can install jsPsych, plugins for jsPsych, and extensions for jsPsych from NPM. I want to use modern JavaScript tooling, like npm and import statements. Having your own copy of the scripts means that you can make modifications to the library such as tweaking plugin behavior. If you used jsPsych prior to version 7.0, this will feel like the most familiar approach. This approach involves downloading a bundle of scripts that make up jsPsych. I want to be able to do some customization, but have a simple setup. For most experiments, this approach will be sufficient. The limitation is that you cannot customize the library. You do not need to download or install anything to start using jsPsych. This approach involves using scripts that are hosted on a CDN. Which approach you choose will depend on what your goals are. With the release of version 7.0 of jsPsych there are now three different ways that you can add jsPsych to your project. Though useless as an actual experiment, the process is helpful for learning the basics of using the jsPsych library. In the long tradition of "Hello world!" examples, this tutorial creates an experiment that outputs the phrase "Hello world!" to the browser. The unpkg CDN is powered by Cloudflare, one of the world's largest and fastest cloud network platforms. Instead, please reach out to unpkg with any questions or concerns. Please do not contact npm for help with unpkg. unpkg is not affiliated with or supported by npm, Inc. Step 2: Import the initJsPsych function and create a new JsPsych instanceĭemo Experiment: Simple Reaction Time Taskĭata Storage, Aggregation, and ManipulationĮxclude Participants Based on Browser Features unpkg is an open source project built and maintained by Michael Jackson. Step 5: Create a script element and initialize jsPsych Step 2: Create a folder to store your experiment files This was an amazing find, and saved us a ton of engineering effort to try to figure out how to configure and manage a CDN on our own.Step 3: Create a script element and initialize jsPsych While exploring CDN options, we discovered unpkg and realized that we just get that functionality for free. It would be better if non npm users could just drop a link tag into the head of their HTML page that would grab the design system CSS off of a CDN. Forcing consumers to introduce another package management tool just to get a few files seems heavy. We cannot guarantee that all consumers of the design system work in the npm ecosystem, though: our Data Science teams need to leverage design system CSS to build uptake branded reports and components, but they work primarily with python and the pip ecosystem. ![]() We distribute the design system via npm as a node_module. The design system is built as a set of CSS classes and html templates (ala bootstrap), and give your site an uptake look-and-feel. I work on a team that supports Uptake’s design system. This also lets you explore which other versions of the package are currently published.įinally, while unpkg’s documentation notes that assets are browser-cached for 4 hours, I found that assets were actually cached for 1 year (via cache-control headers).Just navigating to // <– note the slash at the end of the URL. ![]() You can specify a semantic version in your unpkg url, including semantic version ranges and qualifiers like ^ and ~ which will source the maximum satisfying sources the latest minor version of react 16 (16.5.2 as of this sources the latest patch version of react 16.4 (which is 16.4.2) This is a pretty amazing service to offer for free. Unpkg partners with cloudfare and heroku to make this automatic distributing possible. Unpkg is a free content delivery network (CDN) that automatically distributes public packages published to npm. Unpkg: the free CDN for your npm packages ![]()
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