Add Animated.divide

Author: Andy Stanberry

src/api/Animated/AnimatedImplementation.js

@@ -736,6 +736,32 @@ class AnimatedMultiplication extends AnimatedWithChildren {
   }
 }
 
+class AnimatedDivision extends AnimatedWithChildren {
+  constructor(a, b) {
+    super();
+    this._a = a;
+    this._b = b;
+  }
+
+  __getValue() {
+    return this._a.__getValue() / this._b.__getValue();
+  }
+
+  interpolate(config) {
+    return new AnimatedInterpolation(this, Interpolation.create(config));
+  }
+
+  __attach() {
+    this._a.__addChild(this);
+    this._b.__addChild(this);
+  }
+
+  __detach() {
+    this._a.__removeChild(this);
+    this._b.__removeChild(this);
+  }
+}
+
 class AnimatedTransform extends AnimatedWithChildren {
   constructor(transforms) {
     super();
@@ -949,6 +975,10 @@ function add(a, b) {
   return new AnimatedAddition(a, b);
 }
 
+function divide(a, b) {
+  return new AnimatedDivision(a, b);
+}
+
 function multiply(a, b) {
   return new AnimatedMultiplication(a, b);
 }
@@ -1187,6 +1217,7 @@ const AnimatedImplementation = {
   spring,
   add,
   multiply,
+  divide,
   sequence,
   parallel,
   stagger,

test/api/Animated.js

@@ -24,3 +24,10 @@ describe('Animated.View', () => {
     expect(typeof setNativeProps).to.equal('function');
   });
 });
+
+describe('Animated.divide', () => {
+  it('divides integers', () => {
+    const divided = Animated.divide(new Animated.Value(1), new Animated.Value(2));
+    expect(divided.__getValue()).to.equal(0.5);
+  });
+});