javascript counting letters in a word code example

Example 1: javascript count words in string

var str = "your long string with many words.";
var wordCount = str.match(/(\w+)/g).length;
alert(wordCount); //6

//    \w+    between one and unlimited word characters
//    /g     greedy - don't stop after the first match

Example 2: how get count of letters in javascript

//when use length for string this will be return the count of charactor 
//in string
$("#about_me_textarea").val().length