In Visual Studio Code, the lines will be checked while someone is typing the line on vs code . when the line gets completed , errors get highlighted that time only. It shows how to fix those error. A person can also open two files together side by side in that software, can even open three tabs side by side and look at that same time.

Popular shortcut of V S Code

• Ctrl + Shift + F: Search in all files.
  
• Ctrl + Shift + H: Replace in all the files
  
• Ctrl + T: Go to symbol in all files
  
• Ctrl + B : Toggle Slider Bar
  
• Ctrl + 1: Focus Left Editor
  
• Ctrl+ 2: Focus Right Editor
  
• F2: Rename symbol and function

• Ctrl + 1: Focus Left Editor
  
• Ctrl + Shift + X : Go to Extension Window
  
• Ctrl + J: Toggle Panels
  
• Ctrl + ` : Open terminal in VS Code
  
• Ctrl + Shift + U: Show output Window
  
• Ctrl + Shift + M : Show problems, Where you can see all the problems related to code and warnings.

• Alt + Left: Navigate  between files goes to the left side of files
  
• Alt+ Right: Navigate between files goes to the right side of files
  
• Alt + F12: Peek definition, You can see preview of code for a function
  
• Ctrl + Shift + D: Debug folder or file.