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← DOM Manipulation with JavaScript
○The page is a tree○Exercise: follow the document reference○Load a script when the page is ready○Exercise: initialize a deferred script○Find one element by id or CSS selector○Exercise: select a notice and label○Compare DOM properties, HTML attributes, and node types○Exercise: inspect a room input and its nodes✦Module Quiz
○Find every match with querySelectorAll○Exercise: label every trail stop○Move from a child to its relatives○Exercise: trace a nested card○Check for missing elements and search within a card○Exercise: update only the chosen card○Compare a live HTMLCollection with a static NodeList○Exercise: safely expand a live collection✦Module Quiz
○Safe text and HTML○Exercise: render a safe notice○Read and change link attributes○Exercise: update an accessible link○Data attributes and conditional text○Exercise: announce session availability○Boolean attributes and DOM properties○Exercise: unlock a volunteer sign-up✦Module Quiz
○Add, remove, and check classes○Exercise: mark a favourite card○Toggle a panel accessibly○Exercise: toggle the help panel○Inline styles, classes, and hidden○Exercise: style and hide a notice○Change a CSS custom property from JavaScript○Exercise: change a workshop card accent✦Module Quiz
○Create and Append a Text Node○Exercise: Add a Reading List Item○Place Nodes Before and Between○Exercise: Order the Workshop Agenda○Remove, Replace, and Clear Safely○Exercise: Refresh a Museum Display○Clone a Card and Insert a Batch○Exercise: Clone Two Exhibit Cards✦Module Quiz
○Listen for Clicks with a Named Handler○Exercise: Check Library Hours○Event Target, Current Target, and Delegation○Exercise: Delegate Pantry Actions○Keyboard Events Without Trapping Keys●Exercise: Search the Recipe Box○Once, Remove, and Bubble○Exercise: Control Workshop Notifications✦Module Quiz
○Read a field while someone types○Build a live name preview○Handle submit without leaving the page○Validate a library request○Keep a selection in sync on change and reset○Sync a preference and its reset state○Read multiple checked values with FormData○Build a checkbox-based garden request✦Module Quiz
○Filter a list as someone types○Build a live trail finder○Toggle an accessible disclosure○Build a guide menu disclosure○Create and remove items with one delegated listener○Build a neighborhood task board○Sort a workshop table with accessible buttons○Build an accessible sortable resource table✦Module Quiz
○Read selectable cards and detail updates○Build directory cards and a selected profile○Trace live search and an empty state○Add live search to the community directory○Trace safe additions and delegated removal○Add and remove community directory cards✦Module Quiz
○Read and update a live itinerary○Build the workshop itinerary○Add a validated item through a form○Add a workshop session○Filter and remove live entries○Finish the workshop planner✦Module Quiz
○Fetch JSON and render safe text○Exercise: load recipe cards○Handle loading, empty, and failed responses○Exercise: handle alert states○Build a query with URLSearchParams○Exercise: search the catalog○Abort outdated requests○Exercise: keep the latest result✦Module Quiz
○Load a dashboard from an offline API fixture○Build an events dashboard○Query a dashboard with URLSearchParams○Add event search to the dashboard○Retry requests without stale results○Finish a resilient event dashboard✦Module Quiz

Exercise: Search the Recipe Box

The recipe box has a labeled search field and a normal Search button. Add a keyboard shortcut for Enter in the field; keep ordinary keys and Tab available.

How it works

The separate museum-search example only cancels Enter on the field and cancels the form’s submit event for button activation. The early return matters: if you call preventDefault for every key, you block normal typing and can interfere with navigation. The form listener also prevents an actual page navigation when someone uses its submit button. Keep the provided role="status" element for the result.

javascript
// Different example: a museum catalogue, not your recipe box.
function showArtwork() { output.textContent = "Find: " + query.value.trim(); }
query.addEventListener("keydown", function (event) {
  if (event.key !== "Enter") return;
  event.preventDefault();
  showArtwork();
});
museumForm.addEventListener("submit", function (event) {
  event.preventDefault();
  showArtwork();
});

Try the preview

Type Bread and press Enter: the result should read Finding: Bread, without navigation. Press Tab afterward; focus should still move away from the field. Activating Search with mouse or keyboard should produce the same result.

Remember

The earlier click and delegation lessons relied on native buttons. This shortcut adds behavior to a text field while preserving the browser’s other keyboard behaviors.

Your Task

  1. When #recipe receives Enter on keydown, prevent only that default, leave Tab and ordinary keys uncanceled, and set #recipe-result to Finding: followed by the trimmed field value.
  2. Handle #recipe-form submit by preventing page navigation and showing the same trimmed result for button activation.
Hint 1
1 / 1
HINT 1

Return for non-Enter keys before calling preventDefault.

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READY
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