Merge pull request #1956 from Logan-Schelly/testcases/function-object-5

Testcases/function object 5

Author: iliakan

1-js/06-advanced-functions/06-function-object/5-sum-many-brackets/_js.view/solution.js

@@ -0,0 +1,15 @@
+function sum(a) {
+
+  let currentSum = a;
+
+  function f(b) {
+    currentSum += b;
+    return f;
+  }
+
+  f.toString = function() {
+    return currentSum;
+  };
+
+  return f;
+}

1-js/06-advanced-functions/06-function-object/5-sum-many-brackets/_js.view/source.js

@@ -0,0 +1,12 @@
+function sum(a){
+  // Your code goes here.
+
+}
+
+/*
+sum(1)(2) == 3; // 1 + 2
+sum(1)(2)(3) == 6; // 1 + 2 + 3
+sum(5)(-1)(2) == 6
+sum(6)(-1)(-2)(-3) == 0
+sum(0)(1)(2)(3)(4)(5) == 15
+*/

1-js/06-advanced-functions/06-function-object/5-sum-many-brackets/_js.view/test.js

@@ -0,0 +1,19 @@
+describe("sum", function(){
+  
+  it("sum(1)(2) == 3", function(){
+    assert.equal(3, sum(1)(2));
+  });
+
+  it("sum(5)(-1)(2) == 6", function(){
+    assert.equal(6, sum(5)(-1)(2));
+  });
+  
+  it("sum(6)(-1)(-2)(-3) == 0", function(){
+    assert.equal(0, sum(6)(-1)(-2)(-3));
+  });
+
+  it("sum(0)(1)(2)(3)(4)(5) == 15", function(){
+    assert.equal(15, sum(0)(1)(2)(3)(4)(5));
+  });
+});
+