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fixed some number references
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‎Week2/MAKEME.md‎

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@@ -48,107 +48,85 @@ In each assignment write at least two `console.log` statements to verify if your
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4. Create a function named `vehicleType` that receives a color, and a code, 1 for car, 2 for motorbike. And prints "a blue motorbike" for example when called as `vehicleType("blue", 2)`
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5. Can you write the following without the `if` statement, but with just as a single line with `console.log(...);`?
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```js
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if (3 == 3) {
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console.log("true")
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} else {
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console.log("false")
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}
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```
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```js
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if (3 === 3) {
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console.log("true")
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} else {
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console.log("false")
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}
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```
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6. Create a function called `vehicle`, like before, but takes another parameter called age, so that `vehicle("blue", 1, 5)` prints "a blue used car"
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7. Make a list of vehicles, you can add `"motorbike"`, `"caravan"`, `"bike"`, or more.
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8. How do you get the third element from that list?
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9. Change the function `vehicle` to use the list of question 4. So that `vehicle("green", 3, 1)` prints "a green new caravan".
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9. Change the function `vehicle` to use the list of question 7. So that `vehicle("green", 3, 1)` prints "a green new caravan".
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10. Use the list of vehicles to write an advertisement. So that it prints something like: `"Amazing Joe's Garage, we service cars, motorbikes, caravans and bikes."`. (Hint: use a `for` loop.)
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11. What if you add one more vehicle to the list, can you have that added to the advertisement without changing the code for question 7?
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11. What if you add one more vehicle to the list, can you have that added to the advertisement without changing the code for question 10?
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12. Create an empty object
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12. Create an empty object.
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13. Create an object that contains the teachers that you have had so far for the different modules.
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14. Add a property to the object you just created that contains the languages that they have taught you.
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<!-- 13. Create a function that takes two objects as parameters and compares them. You will actually need to write two functions — one that compares with `==` and one that compares with `===`. Remember that objects can have objects inside of them so you'll need to find a way to compare every element of every object (types and values). For example:
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15. We saw that we can pass functions as arguments to other functions. Your task is to write a function that takes another function as an argument and runs it.
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```js
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let obj1 = {
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a: 1,
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b: 'this is the letter b',
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c: { foo: 'what is a foo anyway',
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bar: [1,2,3,4]
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```js
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function foo(func) {
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// What to do here?
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}
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}
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let obj2 = {
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a: '1',
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b: 'this is the letter b',
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c: { foo: 'what is a foo anyway',
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bar: [1,2,3,4]
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function bar() {
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console.log('Hello, I am bar!');
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}
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}
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```
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In our example we'll say that `obj1 == obj2` is `true` and `obj1 === obj2` is `false`. Make sure you can see why before you write any code!
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Note: give this exercise your best shot but don’t spend more than, say, one hour on it.
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-->
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15. We saw that we can pass functions as arguments to other functions. Your task is to write a function that takes another function as an argument and runs it.
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```js
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function foo(func) {
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// What to do here?
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}
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function bar() {
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console.log('Hello, I am bar!');
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}
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foo(bar);
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```
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foo(bar);
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```
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16. Write some code to test two arrays for equality using `==` and `===`. Test the following:
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```js
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let x = [1,2,3];
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let y = [1,2,3];
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let z = y;
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```
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```js
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let x = [1,2,3];
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let y = [1,2,3];
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let z = y;
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```
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What do you think will happen with `x == y`, `x === y` and `z == y` and `z == x`? Prove it!
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> Don't cheat! Seriously - try it first.
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What do you think will happen with `x == y`, `x === y` and `z == y` and `z == x`? Prove it!
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> Don't cheat! Seriously - try it first.
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Check out this [Fiddle](http://jsfiddle.net/jimschubert/85M4z/). You need to open your browser’s Developer Tools to see the console output. Press the Run button in the upper right corner to run the code.
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Check out this [Fiddle](http://jsfiddle.net/jimschubert/85M4z/). You need to open your browser’s Developer Tools to see the console output. Press the Run button in the upper right corner to run the code.
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More insights from this [Stack Overflow question](http://stackoverflow.com/questions/22395357/how-to-compare-two-arrays-are-equal-using-javascript).
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More insights from this [Stack Overflow question](http://stackoverflow.com/questions/22395357/how-to-compare-two-arrays-are-equal-using-javascript).
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17. Take a look at the following code:
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```js
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let o1 = { foo: 'bar' };
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let o2 = { foo: 'bar' };
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let o3 = o2;
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```js
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let o1 = { foo: 'bar' };
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let o2 = { foo: 'bar' };
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let o3 = o2;
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```
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```
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Show that changing `o2` changes `o3` (or not) and changing ~~`o2` changes `o3`~~ `o1` changes `o3`(or not).
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Does the order that you assign (`o3 = o2` or `o2 = o3`) matter? {Jim Cramer: ???}
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Show that changing `o2` changes `o3` (or not) and changing `o1` changes `o3`(or not).
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Does the order that you assign (`o3 = o2` or `o2 = o3`) matter?
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18. What does the following code return? (And why?)
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```js
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let bar = 42;
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typeof typeof bar;
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```
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```js
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let bar = 42;
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typeof typeof bar;
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```
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> ‘Coerce' means to try to change - so coercing `var x = '6'` to number means trying to change the type to number temporarily.
@@ -176,3 +154,27 @@ How to hand in your homework:
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:star: Additional resources and review: [here](https://github.com/HackYourFuture/JavaScript/tree/master/Week2/REVIEW.md) (work in progress):star:
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<!-- 13. Create a function that takes two objects as parameters and compares them. You will actually need to write two functions — one that compares with `==` and one that compares with `===`. Remember that objects can have objects inside of them so you'll need to find a way to compare every element of every object (types and values). For example:
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```js
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let obj1 = {
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a: 1,
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b: 'this is the letter b',
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c: { foo: 'what is a foo anyway',
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bar: [1,2,3,4]
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}
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}
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let obj2 = {
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a: '1',
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b: 'this is the letter b',
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c: { foo: 'what is a foo anyway',
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bar: [1,2,3,4]
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}
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}
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```
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In our example we'll say that `obj1 == obj2` is `true` and `obj1 === obj2` is `false`. Make sure you can see why before you write any code!
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Note: give this exercise your best shot but don’t spend more than, say, one hour on it.
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-->

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