Questions and reviews workshop

arrays/200.js

@@ -7,3 +7,4 @@ const nums = [10,3,5,6,];
 nums[6] = 50;
 
 console.log(nums.length);
+console.log(nums);

arrays/300.js

@@ -12,6 +12,7 @@ function getTail(arr) {
     return arr.pop();
 };
 
+console.log(alphabet.length);
 console.log(`The first letter of the alphabet is ${getHead(alphabet)}`);
 console.log(`The last letter of the alphabet is ${getTail(alphabet)}`);
 console.log(alphabet.length);

arrays/600.test.js

@@ -9,7 +9,7 @@ function collectNumbers(list) {
 
     const numbersOnly = [];
     for (const item of list) {
-        if (item === 'string') {
+        if (typeof item === 'number') {
             numbersOnly.push(item);
         }
     }

arrays/700.test.js

@@ -5,7 +5,7 @@
 // Fix anything that doesn't work
 
 function countWords(text) {
-    return text.split('').length;
+    return text.split(' ').length;
 }
 
 

arrays/900.js → arrays/900.test.js

@@ -17,6 +17,8 @@
 
 const previousWords = [];
 
+
+
 function getPreviousCaseOfWordOne(word) {
     for (const previousWord of previousWords) {
         if (previousWord.toLowerCase() === word.toLowerCase()) {
@@ -35,3 +37,28 @@ function getPreviousCaseOfWordTwo(word, words) {
     }
     return word;
 }
+
+// Tests for getPreviousCaseOfWordOne
+test('getPreviousCaseOfWordOne returns same word if not seen before', () => {
+    const result = getPreviousCaseOfWordOne("Hello");
+    expect(result).toBe("Hello");
+});
+
+test('getPreviousCaseOfWordOne returns previous case of word if seen before', () => {
+    getPreviousCaseOfWordOne("Hello");
+    const result = getPreviousCaseOfWordOne("HELLO");
+    expect(result).toBe("Hello");
+});
+
+// Tests for getPreviousCaseOfWordTwo
+test('getPreviousCaseOfWordTwo returns same word if not in words array', () => {
+    const words = ["World"];
+    const result = getPreviousCaseOfWordTwo("Hello", words);
+    expect(result).toBe("Hello");
+});
+
+test('getPreviousCaseOfWordTwo returns previous case of word if in words array', () => {
+    const words = ["Hello", "World"];
+    const result = getPreviousCaseOfWordTwo("HELLO", words);
+    expect(result).toBe("Hello");
+});