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Update about_arrays.js #110

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Update about_arrays.js #110

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20 changes: 10 additions & 10 deletions topics/about_arrays.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,23 +2,23 @@ module("About Arrays (topics/about_arrays.js)");

test("array literal syntax and indexing", function() {
var favouriteThings = ["cellar door", 42, true]; // note that array elements do not have to be of the same type
equal(__, favouriteThings[0], 'what is in the first position of the array?');
equal(__, favouriteThings[1], 'what is in the second position of the array?');
equal(__, favouriteThings[2], 'what is in the third position of the array?');
equal(cellar door, favouriteThings[0], 'what is in the first position of the array?');
equal(42, favouriteThings[1], 'what is in the second position of the array?');
equal(true, favouriteThings[2], 'what is in the third position of the array?');
});

test("array type", function() {
equal(__, typeof([]), 'what is the type of an array?');
equal(string, typeof([]), 'what is the type of an array?');
});

test("length", function() {
var collection = ['a','b','c'];
equal(__, collection.length, 'what is the length of the collection array?');
equal(3, collection.length, 'what is the length of the collection array?');
});

test("splice", function() {
var daysOfWeek = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
var workingWeek = daysOfWeek.splice(__, __);
var workingWeek = daysOfWeek.splice(5, 2);
var weekend = daysOfWeek;

deepEqual(workingWeek, ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'], 'what is the value of workingWeek?');
Expand All @@ -30,8 +30,8 @@ test("stack methods", function() {
stack.push("first");
stack.push("second");

equal(__, stack.pop(), 'what will be the first value popped off the stack?');
equal(__, stack.pop(), 'what will be the second value popped off the stack?');
equal("second", stack.pop(), 'what will be the first value popped off the stack?');
equal("first", stack.pop(), 'what will be the second value popped off the stack?');
});

test("queue methods", function() {
Expand All @@ -40,6 +40,6 @@ test("queue methods", function() {
queue.push("second");
queue.unshift("third");

equal(__, queue.shift(), 'what will be shifted out first?');
equal(__, queue.shift(), 'what will be shifted out second?');
equal("third", queue.shift(), 'what will be shifted out first?');
equal("first", queue.shift(), 'what will be shifted out second?');
});