checkpoint_Andrea

checkpoint.md

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+# Week 1 Assessment
+
+### Bash (Terminal)
+
+#### Assume your present working directory is `$ ~/buffy`
+
+1. Make two directories inside `~/buffy`: `scoobies` and `vamps`
+<br><br><br>
+
+- mkdir scoobies
+- mkdir vamps
+
+2. Make files in `scoobies` named `buffy.txt`, `giles.txt` and `angel.txt`
+<br><br><br>
+- cd scoobies
+- touch buffy.txt
+- touch giles.txt
+- touch angel.txt
+
+3. Copy `angel.txt` into the `vamps` directory
+<br><br>
+- Copy angel.txt vamps/
+
+4. Delete the `vamps` directory and everything inside it
+<br><br>
+- cd ..
+- rm -r vamps/
+
+### JS Variables
+
+1. Assign the string "Jack" to a variable called `captain`
+<br><br>
+
+- var captain = "Jack"
+
+2. Using the `captain` variable, use string concatenation to form the string "Oh Jack, my Jack!", assigning it to a variable named `phrase`
+<br><br>
+
+- var pharase = captain + ", my Jack!"
+
+### JS Conditionals
+```js
+var souls = 3;
+var lifeRafts = 2;
+```
+
+1. Write an `if` statement that console.logs "SOS!" if there are more _souls_ than _lifeRafts_
+<br><br>
+
+if (souls > lifeRafts) {
+    console.log("SOS!")
+}
+
+### Data Structures - JS Arrays
+
+1. Create an array named `weekend` with just 'Saturday' in it
+<br><br>
+
+    weekend = ['Saturday']
+
+2. Add 'Sunday' to the end of the `weekend` array
+<br><br>
+
+    weekend.push('Sunday')
+
+3. Add 'Friday' to the front to the front of the `weekend` array
+<br><br>
+
+    weekend.unshift('Friday')
+
+4. Access 'Saturday' in the array and assign to a variable named `day`
+<br><br>
+
+    var day = weekend[1]
+
+5. Remove 'Friday' from the array 
+<br><br>
+
+    weekend.shift();
+
+
+### Data Structures - JS Objects
+
+1. Write an object literal named `brain` having a property of `energyLevel` with a value of `10` as a number
+<br><br>
+
+brain = {
+    energyLevel: 10
+}
+
+
+
+2. Assign the property of `energyLevel` to a variable named `energy`
+<br><br>
+
+var energy = brain.energyLevel
+
+3. Add a `dream` property to the `brain` object that holds the string  'electric sheep'
+<br><br>
+
+brain.dream = 'electrinc sheep'
+
+4. Add a `dayDream` property to the `brain` object that holds the object `{ lunch: ['burger', 'beer'] }` 
+<br><br>
+
+brain.dayDream = {
+    lunch: ['burger','beer'];
+}
+
+5. Add another element `pudding` to the lunch array inside the `brain` object
+<br><br>
+
+.lunch.push('pudding')
+
+### JS Functions
+
+1. Write a function to return the area of a rectangle (the product of its length and its width)
+<br><br>
+
+var area = function(b,h) {
+    return = (b * h)
+}
+
+
+
+2. Invoke the function with `3` and `4` as arguments and save it to a variable named `result`
+<br><br>
+
+
+var area = function(b,h) {
+    return = (b * h)
+}
+
+var result = area;
+
+area(3,4)