The baseFrequencyX read-only property of the SVGFETurbulenceElement interface reflects the X component of the baseFrequency attribute of the given <feTurbulence> element.
An SVGAnimatedInteger object.
baseFrequencyX property<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="turbulenceFilter">
<feTurbulence
type="fractalNoise"
baseFrequency="0.5 0.25"
numOctaves="4" />
</filter>
</defs>
<rect
x="20"
y="20"
width="160"
height="160"
fill="lightblue"
filter="url(#turbulenceFilter)" />
</svg>// Select the feTurbulence element
const turbulenceElement = document.querySelector("feTurbulence");
// Access the baseFrequencyX property
console.log(turbulenceElement.baseFrequencyX.baseVal); // Output: 0.5