diff options
Diffstat (limited to 'javascript.html.markdown')
| -rw-r--r-- | javascript.html.markdown | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/javascript.html.markdown b/javascript.html.markdown index 2ac98105..b6d4c8b7 100644 --- a/javascript.html.markdown +++ b/javascript.html.markdown @@ -107,10 +107,10 @@ false; // There's also null and undefined null; // used to indicate a deliberate non-value -undefined; // used to indicate a value is not currently present (although undefined - // is actually a value itself) +undefined; // used to indicate a value is not currently present (although + // undefined is actually a value itself) -// false, null, undefined, NaN, 0 and "" are falsy, and everything else is truthy. +// false, null, undefined, NaN, 0 and "" are falsy; everything else is truthy. // Note that 0 is falsy and "0" is truthy, even though 0 == "0". /////////////////////////////////// @@ -306,8 +306,8 @@ myObj.myOtherFunc = myOtherFunc; myObj.myOtherFunc(); // = "HELLO WORLD!" // When you call a function with the new keyword, a new object is created, and -// made available to the function via this. Functions designed to be called -// like this are called constructors. +// made available to the function via the this keyword. Functions designed to be +// called like that are called constructors. var MyConstructor = function(){ this.myNumber = 5; @@ -323,7 +323,7 @@ myNewObj.myNumber; // = 5 // property __proto__. While this is useful for explaining prototypes it's not // part of the standard; we'll get to standard ways of using prototypes later. var myObj = { - myString: "Hello world!", + myString: "Hello world!" }; var myPrototype = { meaningOfLife: 42, @@ -331,6 +331,7 @@ var myPrototype = { return this.myString.toLowerCase() } }; + myObj.__proto__ = myPrototype; myObj.meaningOfLife; // = 42 |