diff options
| -rw-r--r-- | javascript.html.markdown | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/javascript.html.markdown b/javascript.html.markdown index 9a51e32a..254163e8 100644 --- a/javascript.html.markdown +++ b/javascript.html.markdown @@ -18,7 +18,7 @@ Feedback would be highly appreciated! You can reach me at [@adambrenecki](https://twitter.com/adambrenecki), or [adam@brenecki.id.au](mailto:adam@brenecki.id.au). -```javascript +```js // Comments are like C. Single-line comments start with two slashes, /* and multiline comments start with slash-star and end with star-slash */ @@ -33,9 +33,8 @@ doStuff() // We'll leave semicolons off here; whether you do or not will depend on your // personal preference or your project's style guide. -/*********** - * 1. Numbers, Strings and Operators - ***********/ +/////////////////////////////////// +// 1. Numbers, Strings and Operators // Javascript has one number type (which is a 64-bit IEEE 754 double). 3 // = 3 @@ -110,9 +109,8 @@ undefined // used to indicate a value that hasn't been set yet // null, undefined, NaN, 0 and "" are falsy, and everything else is truthy. // Note that 0 is falsy and "0" is truthy, even though 0 == "0". -/*********** - * 2. Variables, Arrays and Objects - ***********/ +/////////////////////////////////// +// 2. Variables, Arrays and Objects // Variables are declared with the var keyword. Javascript is dynamically typed, // so you don't need to specify type. Assignment uses a single = character. @@ -162,9 +160,8 @@ myObj.myThirdKey = true // If you try to access a value that's not yet set, you'll get undefined. myObj.myFourthKey // = undefined -/*********** - * 3. Logic and Control Structures - ***********/ +/////////////////////////////////// +// 3. Logic and Control Structures // The if structure works as you'd expect. var count = 1 @@ -204,9 +201,8 @@ if (colour == "red" || colour == "blue"){ // && and || "short circuit", which is useful for setting default values. var name = otherName || "default" -/*********** - * 5. Functions, Scope and Closures - ***********/ +/////////////////////////////////// +// 4. Functions, Scope and Closures // JavaScript functions are declared with the function keyword. function myFunction(thing){ @@ -273,9 +269,8 @@ function sayHelloInFiveSeconds(name){ } sayHelloInFiveSeconds("Adam") // will open a popup with "Hello, Adam!" in 5s -/*********** - * 6. More about Objects; Constructors and Prototypes - ***********/ +/////////////////////////////////// +// 5. More about Objects; Constructors and Prototypes // Objects can contain functions. var myObj = { |