files/en-us/web/api/dommatrixreadonly/skewx/index.md
{{APIRef("Geometry Interfaces")}}{{AvailableInWorkers}}
The skewX() method of the {{domxref("DOMMatrixReadOnly")}} interface returns a new {{domxref("DOMMatrix")}} created by applying the specified skew transformation to the source matrix along its x-axis. The original matrix is not modified.
To mutate the matrix as you skew it along the x-axis, see {{domxref("DOMMatrix.skewXSelf()")}}.
skewX()
skewX(sX)
sX
A DOMMatrix.
const matrix = new DOMMatrix(); // create a matrix
console.log(matrix.toString()); // no transform applied
// "matrix(1, 0, 0, 1, 0, 0)"
console.log(matrix.skewX(14).toString());
// "matrix(1, 0, 0.25, 1, 0, 0)"
console.log(matrix.toString()); // original is unchanged
// "matrix(1, 0, 0, 1, 0, 0)"
{{Specifications}}
{{Compat}}
transform attribute