General information and reminder

General coding rules

• Readability
• A code could be easy to read (not to write)
• Erase all non essential lines
• One logical operation per line: don't try to cumulate operations, don't try to write tricky code
• Simplicity (KISS)
• Prefer simple solution to complex one (simpler to read/maintain).
• Erase all non essential lines
• One logical operation per line: don't try to cumulate operations, don't try to write tricky code
• Don't repeat yourself (DRY)
• Factorize your code in functions (in JS)
• Factorize your appearance parameters using adequate selectors (in CSS)
• Follow standards
• Prefer the use of built-in standard functions rather than external library.
• But, prefer the use of external libraries rather than complex tricky hand-made.

More specific web development rules

• Separation of Concerns (SoC)
• Document structure and semantic should be clearly defined in the HTML file.
• Appearance should be parameterized in the CSS file.
• Logic should be described in the JavaScript file.
• Accessibility
• Check that your website is accessible without JavaScript activated
• Check that your website is accessible without images (ex. in command line)
• Efficiency
Minimize the amount of data to be loaded (minimize bandwith consumption).
• Avoid loading external library and asset you would not use
• Minimize the size of your images (reduce their pixel size to fit their final dimension on screen, save photos as jpg)
• Prefer the use of CSS graphics than external files for constant/gradient color
• Avoid using unecessary JavaScript