solution and test for llipio#21

solutions/21.js

@@ -0,0 +1,25 @@
+
+const largestDesNums = (array) => {
+   let newArray = [];
+  array.sort(function(a,b) { return  b - a });
+
+  for (let i = 0; i<3; i++) {
+    newArray.push(array[i]);
+  }
+
+  return ( 
+    newArray  
+   );
+  };
+
+module.exports = {
+  largestDesNums
+};
+
+
+
+
+
+
+
+

test/21.js

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+
+const expect = require('chai').expect;
+let largestDesNums = require('../solutions/21').largestDesNums
+
+describe('Largest Three Numbers', () => {
+  it('should return the 3 largest numbers in descending order', () => {
+    const result = largestDesNums([1,9,8,7]);
+    expect(result).to.deep.equal([9,8,7]);
+  });
+
+  it('should return the 3 largest numbers in descending order', () => {
+    const result = largestDesNums([11,34,29,76]);
+    expect(result).to.deep.equal([76,34,29]);
+  });
+
+  it('should return the 3 largest numbers in descending order', () => {
+    const result = largestDesNums([234,123,456,345,897]);
+    expect(result).to.deep.equal([897,456,345]);
+  });
+});
+
+