reactive-function - npm Package Compare versions

Comparing version 0.4.0 to 0.5.0

index.js

@@ -42,3 +42,3 @@ var ReactiveProperty = require("reactive-property");
 
-  // The returned reactive function acts as a getter (not a setter).
+  // The returned object.
   var reactiveFunction = {};
@@ -107,3 +107,3 @@
   graph
-    .topologicalSort(Object.keys(changedNodes))
+    .topologicalSort(Object.keys(changedNodes), false)
     .map(function (id){
@@ -110,0 +110,0 @@ return properties[id];

package.json

 {
   "name": "reactive-function",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "A library for managing data flows and changing state.",
@@ -33,3 +33,3 @@ "main": "index.js",
   "dependencies": {
-    "graph-data-structure": "^0.1.0",
+    "graph-data-structure": "^0.5.0",
     "reactive-property": "^0.7.0"
@@ -36,0 +36,0 @@ },

README.md

@@ -1,2 +0,5 @@
-# reactive-function
+# reactive-function [![Build Status](https://travis-ci.org/curran/reactive-function.svg?branch=master)](https://travis-ci.org/curran/reactive-function)
+
+[![NPM](https://nodei.co/npm/reactive-function.png)](https://npmjs.org/package/reactive-function)
+
 A library for managing data flows and changing state.
@@ -48,5 +51,5 @@
   inputs: [firstName, lastName],
-  output: lastName,
+  output: fullName,
   callback: function (first, last){
-    return first + " " last;
+    return first + " " + last;
   }
@@ -53,0 +56,0 @@ });

test.js

@@ -14,12 +14,12 @@ // Unit tests for reactive-function.
 
-    var a = ReactiveProperty(5);
-    var b = ReactiveProperty(10);
+    var firstName = ReactiveProperty("Jane");
+    var lastName = ReactiveProperty("Smith");
 
-    var c = ReactiveProperty();
+    var fullName = ReactiveProperty();
 
     ReactiveFunction({
-      inputs: [a, b],
-      output: c,
-      callback: function (a, b){
-        return a + b;
+      inputs: [firstName, lastName],
+      output: fullName,
+      callback: function (first, last){
+        return first + " " + last;
       }
@@ -29,3 +29,11 @@ });
     ReactiveFunction.digest();
-    assert.equal(c(), 15);
+    assert.equal(fullName(), "Jane Smith");
+
+    firstName("John");
+    ReactiveFunction.digest();
+    assert.equal(fullName(), "John Smith");
+
+    lastName("Lennon");
+    ReactiveFunction.digest();
+    assert.equal(fullName(), "John Lennon");
   });
@@ -139,25 +147,9 @@
     ReactiveFunction.digest();
+    assert.equal(e(), ((a() * 2) + 5) + (a() * 3));
 
+    a(10);
+    ReactiveFunction.digest();
     assert.equal(e(), ((a() * 2) + 5) + (a() * 3));
   });
 
-  // Not sure if this is really necessary.
-  // It would be a nice safeguard but would clutter the code.
-  //it("Should throw an error if attempting to set the value directly.", function () {
-  //  var a = ReactiveProperty(5);
-  //  var b = ReactiveProperty();
-
-  //  ReactiveFunction({
-  //    inputs: [a],
-  //    output: b,
-  //    callback: function (a){
-  //      return a * 2;
-  //    }
-  //  });
-
-  //  assert.throws(function (){
-  //    b(5);
-  //  });
-  //});
-
   it("Should clear changed nodes on digest.", function () {
@@ -339,2 +331,53 @@ var numInvocations = 0;
 
+  it("Should compute Ohm's Law.", function (){
+
+    // These symbols are used in the definition of Ohm's law.
+    // See https://en.wikipedia.org/wiki/Ohm%27s_law
+    var I = ReactiveProperty();
+    var V = ReactiveProperty();
+    var R = ReactiveProperty();
+
+    // I = V / R
+    ReactiveFunction({
+      inputs: [V, R],
+      output: I,
+      callback: function (v, r){ return v / r; }
+    });
+
+    // V = I * R
+    ReactiveFunction({
+      inputs: [I, R],
+      output: V,
+      callback: function (i, r){ return i * r; }
+    });
+
+    // R = V / I
+    ReactiveFunction({
+      inputs: [V, I],
+      output: R,
+      callback: function (v, i){ return v / i; }
+    });
+
+    V(9)
+    I(2)
+    ReactiveFunction.digest();
+    assert.equal(R(), 4.5);
+
+    R(6)
+    I(2)
+    ReactiveFunction.digest();
+    assert.equal(V(), 12);
+
+    V(9);
+    R(18);
+    ReactiveFunction.digest();
+    assert.equal(I(), 0.5);
+
+    V(9)
+    I(2)
+    ReactiveFunction.digest();
+    assert.equal(R(), 4.5);
+
+  });
+
   it("Should remove the 'evaluate' function from the output on destroy.", function (){
@@ -341,0 +384,0 @@ var a = ReactiveProperty(5);

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Improved metrics

Total package byte prevSize

17163

increased by7.13%

Number of package files

7

increased by16.67%

Lines of code

420

increased by8.81%

Number of lines in readme file

81

increased by3.85%

Dependency changes

• + Addedgraph-data-structure@0.5.0(transitive)

• - Removedgraph-data-structure@0.1.0(transitive)

• Updatedgraph-data-structure@^0.5.0