一步步创建你的第一个浏览器扩展

// Create a debounce function to avoid excessive
// calls to the GitHub API while the user is still
// typing the search query.
function debounce(fn, delay) {
  let timeoutID;
  return function (...args) {
    if (timeoutID) clearTimeout(timeoutID);
    timeoutID = setTimeout(() => fn(...args), delay);
  };
}

// When the user has changed what is typed into the omnibox.
chrome.omnibox.onInputChanged.addListener(
  debounce(async (text, suggest) => {
    const response = await fetch(
      `https://api.github.com/search/issues?q=${text}`,
    );
    const data = await response.json();
    const suggestions = data.items.map((issue) => ({
      content: issue.html_url,
      description: issue.title,
    }));

    suggest(suggestions);
  }, 250),
);

// When the user has accepted what is typed into the omnibox.
chrome.omnibox.onInputEntered.addListener((text) => {
  // Convert any special character (spaces, &, ?, etc)
  // into a valid character for the URL format.
  const encodedSearchText = encodeURIComponent(text);
  const url = `https://github.com/search?q=${encodedSearchText}&type=issues`;

  chrome.tabs.create({ url });
});