Bouncy ease in.

Bouncy ease in and out.

Bouncy ease out.

Cubic bezier easing with control points (x1,y1) and (x2,y2). The curve runs from (0,0) to (1,1). Matches the CSS cubic-bezier(x1, y1, x2, y2) timing function.

Exponential ease in.

Exponential ease in and out.

Exponential ease out.

Get an easing function by name (ie, "ease-in", "cubic-bezier(0.1, 0.7, 1, 0.1)" or "steps(4, end)"). If the function doesn't exist we return QuadraticInOut

Linear easing function, x=y.

Quadratic ease in.

Quadratic ease in and out.

Quadratic ease out.

Sine ease in.

Sine ease in and out.

Sine ease out.

Stays at 0 until the animation ends, then jumps to 1.

Stepped easing with equal-sized jumps. When is true the jump happens at the start of each step, otherwise it happens at the end. Matches the CSS steps(n, start|end) timing function.

Jumps straight to 1 the moment the animation starts.

Get an easing function by name (ie, "ease-in", "cubic-bezier(0.1, 0.7, 1, 0.1)" or "steps(4, end)"). If the function exists we return true, otherwise return false.