add some ND comments to JavaScript object extensions

git-svn-id: http://svn.openlayers.org/trunk/openlayers@3801 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/BaseTypes.js

@@ -16,6 +16,7 @@
 
 /**
  * APIFunction: String.startsWith
+ * Whether or not a string starts with another string. 
  * 
  * Parameters:
  * sStart - {Sring}
@@ -29,6 +30,7 @@ String.prototype.startsWith = function(sStart) {
 
 /**
  * APIFunction: String.contains
+ * Whether or not a string contains another string.
  * 
  * Parameters:
  * str - {String}
@@ -42,6 +44,7 @@ String.prototype.contains = function(str) {
 
 /**
  * APIMethod: String.trim
+ * Removes leading and trailing whitespace characters from a string.
  * 
  * Return:
  * {String} A trimmed version of the string - all leading and 
@@ -64,6 +67,7 @@ String.prototype.trim = function() {
 
 /**
  * APIFunction: String.indexOf
+ * Index of a character in a string.
  * 
  * Parameters:
  * object - {Object} Can be a string or a number
@@ -79,6 +83,9 @@ String.indexOf = function(object) {
 
 /**
  * APIFunction: camelize
+ * Camel-case a hyphenated string. 
+ *     Ex. "chicken-head" becomes "chickenHead", and
+ *     "-chicken-head" becomes "ChickenHead".
  * 
  * Return:
  * {String} The string, camelized
@@ -108,7 +115,8 @@ String.prototype.camelize = function() {
 
 /**
  * APIFunction: Number.limitSigDigs
- * Works only with integer values does *not* work with floats!
+ * Limit the number of significant digits on an integer. Does *not* work 
+ *     with floats!
  * 
  * Parameters:
  * sig - {Integer}
@@ -135,6 +143,7 @@ Number.prototype.limitSigDigs = function(sig) {
 
 /**
  * APIFunction: Function.bind
+ * Bind a function to an object. 
  * 
  * Parameters:
  * object - {Object}
@@ -155,7 +164,9 @@ Function.prototype.bind = function() {
 
 /**
  * APIFunction: Function.bindAsEventListener
- *  
+ * Bind a function to an object, and configure it to receive the event object
+ *     as first parameter when called. 
+ * 
  * Parameters:
  * object - {Object}
  *