complete 4-stretch-explore

Author: XiaoQuark

Sprint-1/4-stretch-explore/chrome.md

@@ -12,7 +12,11 @@ invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
 
+An alert box pops up in the browser window displaying my Hello World! message.
+
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+A prompt box pops up, displaying my question and an input field for me to answer.
 What is the return value of `prompt`?
+My answer as a string.

Sprint-1/4-stretch-explore/objects.md

@@ -5,12 +5,44 @@ In this activity, we'll explore some additional concepts that you'll encounter i
 Open the Chrome devtools Console, type in `console.log` and then hit enter
 
 What output do you get?
+ƒ log() { [native code] } <-- tells me log() is a native function of Javascript
 
 Now enter just `console` in the Console, what output do you get back?
+console {debug: ƒ, error: ƒ, info: ƒ, log: ƒ, warn: ƒ, …}
+assert: ƒ assert()
+clear: ƒ clear()
+context: ƒ context()
+count: ƒ count()
+countReset: ƒ countReset()
+createTask: ƒ createTask()
+debug: ƒ debug()
+dir: ƒ dir()
+dirxml: ƒ dirxml()
+error: ƒ error()
+group: ƒ group()
+groupCollapsed: ƒ groupCollapsed()
+groupEnd: ƒ groupEnd()
+info: ƒ info()
+log: ƒ log()
+memory: MemoryInfo {totalJSHeapSize: 48746582, usedJSHeapSize: 43721570, jsHeapSizeLimit: 4395630592}
+profile: ƒ profile()
+profileEnd: ƒ profileEnd()
+table: ƒ table()
+time: ƒ time()
+timeEnd: ƒ timeEnd()
+timeLog: ƒ timeLog()
+timeStamp: ƒ timeStamp()
+trace: ƒ trace()
+warn: ƒ warn()
+Symbol(Symbol.toStringTag): "console"
+[[Prototype]]: Object <-- prints out the console object with all its properties
 
 Try also entering `typeof console`
+'object' <-- data type of console
 
 Answer the following questions:
 
 What does `console` store?
+The console object stores a series of functions that help with debugging code.
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+The syntax console.log, called dot notation, is the simplest method to access the properties of an object. The "." identifies log as a property of console. Without it we would not be able to access the function, nor use it.