The Promise.reject() static method returns a Promise object that is rejected with a given reason.

Assertions include boundaries, which indicate the beginnings and endings of lines and words, and other patterns indicating in some way that a match is possible (including look-ahead, look-behind, and conditional expressions).

The Promise.resolve() static method "resolves" a given value to a Promise. If the value is a promise, that promise is returned; if the value is a thenable, Promise.resolve() will call the then() method with two callbacks it prepared; otherwise the returned promise will be fulfilled with the value.

The in2 attribute identifies the second input for the given filter primitive. It works exactly like the in attribute.

The destructuring syntax is a JavaScript syntax that makes it possible to unpack values from arrays, or properties from objects, into distinct variables. It can be used in locations that receive data (such as the left-hand side of an assignment or anywhere that creates new identifier bindings).

The clip-path presentation attribute defines or associates a clipping path with the element it is related to.

The arguments.length data property contains the number of arguments passed to the function.

The display attribute lets you control the rendering of graphical or container elements.

The cy attribute defines the y-axis coordinate of a center point.

The gradientTransform attribute contains the definition of an optional additional transformation from the gradient coordinate system onto the target coordinate system (i.e., userSpaceOnUse or objectBoundingBox). This allows for things such as skewing the gradient. This additional transformation matrix is post-multiplied to (i.e., inserted to the right of) any previously defined transformations, including the implicit transformation necessary to convert from object bounding box units to user space.