what is the difference between refresh rate and frame rate?

Question

please can any one explain for me , what is the difference between refresh rate and frame rate?

in the Wikipedia I found this definition for refresh rate "is the number of times in a second that a display hardware updates its buffer" , but what that mean , does that mean that if we wrote a JavaScript function that changes a style of an element periodically we have to wait until my screen refresh to see that change ????

please help me I am confused a little.

Answer 1

Frame rate

Frame rate, also known as frame frequency and frames per second (FPS), is the frequency (rate) at which an imaging device produces unique consecutive images called frames. The term applies equally well to film and video cameras, computer graphics, and motion capture systems. Frame rate is most often expressed in frames per second (FPS) and is also expressed in progressive scan monitors as hertz (Hz).

Source: Wikipedia

Refresh rate

The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for cathode ray tubes) is the number of times in a second that a display hardware updates its buffer. This is distinct from the measure of frame rate in that the refresh rate includes the repeated drawing of identical frames, while frame rate measures how often a video source can feed an entire frame of new data to a display.

Source: Wikipedia