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- function accessFirstItem(array) {
- return array[0]
- }
- function accessThirdItem(array) {
- return array[2]
- }
- /* From here down, you are not expected to
- understand.... for now :)
- Nothing to see here!
- */
- // tests
- function testFunctionWorks(fn, input, expected) {
- if (fn(input) === expected) {
- console.log('SUCCESS: `' + fn.name + '` works on `[' + input + ']`');
- return true;
- } else {
- console.log(
- 'FAILURE: `' + fn.name + '([' + input + '])` should be ' + expected +
- ' but was ' + fn(input)
- );
- return false;
- }
- }
- function runTests() {
- var list = [1, 4, 9, 16, 25]
- var item1 = 1
- var item2 = 9
- var testResults = [
- testFunctionWorks(accessFirstItem, list, item1),
- testFunctionWorks(accessThirdItem, list, item2),
- ];
- var numPassing = testResults.filter(function (result) {
- return result;
- }).length;
- console.log(numPassing + ' out of ' + testResults.length + ' tests passing.');
- }
- runTests();
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