Javascript test facility
Just input whatever temperature you've got in one of them cells
CelsiusFahrenheit
Just input whatever number you've got into its respective cell
SystemValue
Decimal
Hexadecimal
Binary
You need to correctly guess a number from 1 to 100 within 7 attempts
Here be the number
Attempt 1:
Attempt 2:
Attempt 3:
Attempt 4:
Attempt 5:
Attempt 6:
Attempt 7:
More of hsla/canvas test than JS.
But canvas is exactly that amalgam.
Hue
Saturation
Lightness
Transparency (alpha)
Fahrenheit to Celsius converter
Numeric system converter
Guess the number
Spectrum