Skew transformations allow you to create advanced visual effects by slanting objects horizontally or vertically on the canvas. In Fabric.js, skewing is controlled by two properties: skewX and skewY.

The skewX property tilts the object along the x-axis, making the sides appear slanted horizontally. The skewY property tilts the object along the y-axis, slanting it vertically. Both properties accept values in degrees, and you can set them when creating a new object or update them later. Skewing is useful for creating perspective effects, dynamic shapes, or simulating 3D transformations.

To apply a skew transformation, simply set the skewX and/or skewY property on any Fabric.js object, such as a rectangle, circle, or text. For example, setting skewX: 30 will slant the object 30 degrees horizontally. You can combine both properties for more complex effects.

Experimenting with different skew values helps you understand how these transformations affect the appearance of objects. Skewing does not change the actual width or height of the object, but only alters its orientation, creating the illusion of depth or motion.