patch: destructure args

Author: eric-yates

src/components/Fft.ts

@@ -32,10 +32,11 @@ export default class Fft implements FastFourierTransform {
     }
 
     public inverse(signal: ComplexNumbers) {
-        assertValidDataLength(signal.real, this.radix)
-        assertValidDataLength(signal.imaginary, this.radix)
+        const { real, imaginary } = signal
+        assertValidDataLength(real, this.radix)
+        assertValidDataLength(imaginary, this.radix)
 
-        const result = this.filiFft.inverse(signal.real, signal.imaginary)
+        const result = this.filiFft.inverse(real, imaginary)
 
         return {
             real: result.re,

src/components/HilbertTransformer.ts

@@ -22,7 +22,7 @@ export default class HilbertTransformer implements HilbertTransform {
     }
 
     public run(signal: number[]) {
-        this.signal = signal
+        this.signal = signal.slice()
         this.assertValidSignal()
 
         this.runForwardFft()