Make sure that the ready event doesn't double-fire when .bind(ready) is used. Fixes...

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 6c6d006..3a37c4a 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -33,6 +33,9 @@ var jQuery = function( selector, context ) {
        // Check for non-word characters
        rnonword = /\W/,
 
+       // Check for digits
+       rdigit = /\d/,
+
        // Match a standalone tag
        rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
 
@@ -91,7 +94,7 @@ jQuery.fn = jQuery.prototype = {
                }
                
                // The body element only exists once, optimize finding it
-               if ( selector === "body" && !context ) {
+               if ( selector === "body" && !context && document.body ) {
                        this.context = document;
                        this[0] = document.body;
                        this.selector = "body";
@@ -309,7 +312,7 @@ jQuery.fn.init.prototype = jQuery.fn;
 
 jQuery.extend = jQuery.fn.extend = function() {
        // copy reference to target object
-       var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy, copyIsArray;
+       var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy, copyIsArray, clone;
 
        // Handle a deep copy situation
        if ( typeof target === "boolean" ) {
@@ -421,8 +424,8 @@ jQuery.extend({
                        }
 
                        // Trigger any bound ready events
-                       if ( jQuery.fn.triggerHandler ) {
-                               jQuery( document ).triggerHandler( "ready" );
+                       if ( jQuery.fn.trigger ) {
+                               jQuery( document ).trigger( "ready" ).unbind( "ready" );
                        }
                }
        },
@@ -488,6 +491,10 @@ jQuery.extend({
                return obj && typeof obj === "object" && "setInterval" in obj;
        },
 
+       isNaN: function( obj ) {
+               return obj == null || !rdigit.test( obj ) || isNaN( obj );
+       },
+
        type: function( obj ) {
                return obj == null ?
                        String( obj ) :