solutions and test llipio#31

solutions/31.js

@@ -0,0 +1,19 @@
+// return longest string
+
+// input: ['hi','hello','hola']
+// output 'hello'
+
+const solution = (arr) => {
+  let length = 0;
+  let word = 0
+  for(let i = 0; i < arr.length; i++){
+    if(arr[i].length > length){
+      length = arr[i].length;
+      word = arr[i];
+    }
+  }
+  return word;
+};
+module.exports = {
+  solution
+};

test/31.js

@@ -0,0 +1,18 @@
+const expect = require('chai').expect;
+let solution = require('../solutions/31').solution;
+// solution = require('./yourSolution').solution;
+
+describe('longest string in an array', () => {
+  it('the longest string in [hi,hello,hola] is hello', () => {
+    expect(solution(['hi','hello','hola'])).eql('hello');
+  })
+  it('the longest string in [is, whether, approximately] is approximately', () => {
+    expect(solution(['is','whether','approximately'])).eql('approximately');
+  })
+  it('the longest string in [wait,see,us] is wait', () => {
+    expect(solution(['wait','see','us'])).eql('wait');
+  })
+  it('the longest string in [shout,basic,lead]', () => {
+    expect(solution(['shout','basic','lead'])).eql('shout');
+  })
+});