👨‍💻 Tech Pro Tip

💡 General

• Use the Shift key to type capital letters instead of relying on Caps Lock. It’s more efficient and helps prevent accidental ALL CAPS typing.
• If you’re curious about how a font looks in action, just Google its name — for popular fonts like Comic Sans, Roboto, or Courier, Google will sometimes render the search results page in that font. It’s a clever Easter egg that lets you preview the font in real-time. Great for designers or anyone picking fonts quickly. Note: it works best in Chrome and may not appear if you’re using certain browser extensions.
• You can create a link that highlights specific text fragment on a page by adding #:~:text=your%20text%20here to the end of the URL — it’ll auto-scroll and highlight the exact phrase in Chrome or Edge. For example, linking to “climate change” on Wikipedia looks like this: https://en.wikipedia.org/wiki/Climate_change#:~:text=climate%20change.

💡 macOS

• How to add Trash to the Finder window sidebar? Open the Trash > Go to the File menu > Click “Add to Sidebar”
• Use the keyboard shortcut Shift + Cmd + / to show the menu bar search, which reveals the menu bar with the added benefit of putting the cursor in the search field, so that you can quickly type the command you want and hit Enter
• Batch rename multiple files
• Select multiple contiguous files at once in Finder
  • Method 1: Cmd+2 (List View) → Shift click for your selection → Cmd+1 (Icon View)
  • Method 2: Drag a rectangle around files
• Right-click a folder in Finder on macOS, you will get an “Import from iPhone/iPad” option. Click that and your iPhone/iPad will open a scanner app which lets you “Take Photo”, “Scan Documents”, and “Add Sketch.”
• Move (i.e., cut & paste) files&folders in Finder
  • Method 1: First Cmd + C, then Opt + Cmd + V → will paste the file and remove it from original location
  • Method 2: Install Sindre Sorhus’s Command X app for more intuitive keyboard shortcuts
• How to do forward-delete on a MacBook? Hold down the Fn button and then press Backspace
• How to View a GIF with animated frames on macOS?
  1. Open Finder and locate the GIF file.
  2. Select the GIF (without opening it) and press Spacebar to preview it.
  3. Alternatively, press Cmd + Y to open Quick Look.
  4. You can only preview one GIF at a time, but you can use Tab to cycle through files.
  5. Press ESC to close the preview.
• You can access the audio files of system sounds like ringtones, alerts, and notifications via /System/Library/PrivateFrameworks/ToneLibrary.framework/Versions/A/Resources/Ringtones/ & /System/Library/Sounds/. Files here are typically in .m4r, .caf, or .aiff format. This directory is read-only under normal user conditions, and modifying it requires elevated permissions.

💡 iOS

• Instead of using the traditional copy-and-paste approach to move text/images/files/urls/etc. between apps, use the hidden drag-and-drop feature.
• Move multiple Home Screen apps at once: Tap and hold on one app, then tap more apps to add them to your stack
• Good phone charging habits to maximize battery lifespan
  1. Keep battery between 20–80% Charge once daily (~1 hr) when below 20%, instead of multiple short charges.
  2. Avoid overnight charging Unless Optimized Battery Charging is enabled (default on most modern phones).
  3. Use certified chargers Stick to original or MFi-certified accessories to protect your device.
• 在 iPhone 輸入中文時，可以先輸入每個字的首個注音符號，待所有字母輸入完畢後，再依照建議詞彙或上下文選字。這種方式有助於提高輸入速度，特別是在熟悉鍵盤佈局後，可減少中斷思考的時間。
• Saying “Remind me” to Siri can create a reminder in the default list.

💡 Apple Ecosystem

• Use Universal Clipboard to copy and paste between your Apple devices