treehouse/static/js/usability.js

// Bits and pieces to make the treehouse just a bit more easy to explore.

// We want to let the user have a selection on collapsible blocks without collapsing them when
// the user finishes marking their selection.
document.addEventListener("click", event => {
    if (getSelection().type == "Range") {
        event.preventDefault();
    }
})

// Certain words don't make sense if scripts are disabled.
class YesScript extends HTMLElement {
    connectedCallback() {
        this.classList.add("yes-indeed");
    }
}

customElements.define("th-yesscript", YesScript);