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| -rw-r--r-- | javascript.html.markdown | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/javascript.html.markdown b/javascript.html.markdown index 6b6be34d..97c5b712 100644 --- a/javascript.html.markdown +++ b/javascript.html.markdown @@ -142,6 +142,10 @@ var myArray = ["Hello", 45, true]; // Array indices start at zero. myArray[1]; // = 45 +// Arrays are mutable and of variable length. +myArray.push("World"); +myArray.length; // = 4 + // JavaScript's objects are equivalent to 'dictionaries' or 'maps' in other // languages: an unordered collection of key-value pairs. var myObj = {key1: "Hello", key2: "World"}; |