完整代码
(function(global, factory) {
typeof define === 'function' ? define(factory) : global.$ = factory();
})(this, function() {
var jQuery = function(selector) {
return new jQuery.fn.init(selector);
}
var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
jQuery.trim = function(text) {
return text == null ? "" : (text + "").replace(rtrim, "");
}
jQuery.each = function(obj, callback) {
var i, length = obj.length;
for(i = 0; i < length; i++) {
if(callback.call(obj[i], i) === false) break;
}
return obj;
}
jQuery.ajax = function(obj) {
var ajax, k, response, isJSON = obj.dataType && 'JSON' == obj.dataType.toUpperCase();
var url = 'string' == typeof obj.url ? obj.url : location.href;
var isPOST, type = (isPOST = obj.type && 'POST' == obj.type.toUpperCase()) ? 'POST' : 'GET';
var data = '';
if('object' == typeof obj.data) {
for(k in obj.data) {
data = data + '&' + k + '=' + encodeURIComponent(obj.data[k]);
}
data = data.substring(1);
} else if('srting' == typeof obj.data) {
data = obj.data;
}
if(XMLHttpRequest) {
ajax = new XMLHttpRequest();
} else if(ActiveXObject) {
ajax = new ActiveXObject("Microsoft.XMLHTTP");
} else return;
!isPOST && (url = url + '?' + data);
ajax.open(type, url, false === obj.async ? false : true);
ajax.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
ajax.send(isPOST ? data : null);
ajax.onreadystatechange = function() {
if(ajax.readyState == 4) {
if(ajax.status == 200) {
response = jQuery.trim(ajax.responseText);
response = isJSON ? JSON.parse(response) : response;
obj.success && obj.success.call({}, response);
} else {
obj.error && obj.error.call({}, ajax.status, ajax.statusText);
}
}
}
}
jQuery.event = {
add: function(elem, type, selector, fn) {
elem.each(function() {
if(this.addEventListener) {
this.addEventListener(type, eventDo(this));
} else if(this.attachEvent) {
this.attachEvent('on' + type, eventDo(this));
} else return;
});
function eventDo(docElem) {
if(selector) {
return function() {
jQuery(docElem).find(selector).each(function() {
if(this === document.elementFromPoint(event.clientX, event.clientY)) {
'function' === typeof fn && fn.call(this);
}
});
}
} else {
return function() {
'function' === typeof fn && fn.call(docElem);
}
}
}
}
};
var textType = typeof document.textContent === 'undefined' ? 'innerText' : 'textContent';
jQuery.fn = jQuery.prototype = {
length: 0,
init: function(selector) {
this.length = 1;
this[0] = document;
if(!selector) {
return this;
} else if(typeof selector === 'string') {
return this.find(selector);
} else if(selector.nodeType) {
this[0] = selector;
}
return this;
},
find: function(selector) {
if(typeof selector != 'string') return this;
var i, elems, elem = jQuery();
delete elem[0];
elem.length = 0;
this.each(function() {
elems = this.querySelectorAll(selector);
for(i = 0; i < elems.length; i++) {
elem[elem.length] = elems[i];
elem.length++;
}
});
return elem;
},
each: function(callback) {
return jQuery.each(this, callback);
},
parent: function() {
var elem = jQuery();
delete elem[0];
elem.length = 0;
this.each(function(i) {
elem[i] = this.parentNode;
elem.length++;
});
return elem;
},
check: function() {
var elem = jQuery();
delete elem[0];
elem.length = 0;
this.each(function() {
if(this.checked) {
elem[elem.length] = this;
elem.length++;
}
});
return elem;
},
remove: function() {
return this.each(function() {
if(this && this.parentNode) {
this.parentNode.removeChild(this);
}
});
},
append: function(htmlstr) {
return domManip(this, htmlstr, function(elem) {
if(this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
this.appendChild(elem);
}
});
},
prepend: function(htmlstr) {
return domManip(this, htmlstr, function(elem) {
if(this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
this.insertBefore(elem, this.firstChild);
}
});
},
before: function(htmlstr) {
return domManip(this, htmlstr, function(elem) {
if(this.parentNode) {
this.parentNode.insertBefore(elem, this);
}
});
},
after: function(htmlstr) {
return domManip(this, htmlstr, function(elem) {
if(this.parentNode) {
this.parentNode.insertBefore(elem, this.nextSibling);
}
});
},
empty: function() {
return this.each(function() {
if(this.nodeType === 1) {
this[textType] = "";
}
});
},
text: function(value) {
if(value === undefined) {
return this[0] && this[0][textType] || '';
} else {
return this.empty().each(function() {
if(this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
this[textType] = value;
}
});
}
},
html: function(value) {
if(value === undefined) {
return this[0] && this[0].innerHTML || '';
} else {
return this.empty().each(function() {
if(this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
this.innerHTML = value;
}
});
}
},
val: function(value) {
if(value === undefined) {
return this[0] && this[0].value || '';
} else {
return this.empty().each(function() {
if(this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
this.value = value;
}
});
}
},
on: function(type, selector, fn) {
if(fn == undefined) {
fn = selector;
selector = undefined;
}
jQuery.event.add(this, type, selector, fn);
return this;
},
css: function(name, value) {
return this.each(function() {
this.style[name] = value;
});
},
addClass: function(className) {
return this.each(function() {
this.className = this.className + ' ' + className;
});
},
removeClass: function(className) {
return this.each(function() {
this.className = this.className.replace(new RegExp(className, "g"), '').replace(/^\s+|\s+$/g, '');
});
},
data: function(name, value) {
if(value === undefined) {
return this[0] && (this[0].dataset ? this[0].dataset[name] : this[0].getAttribute('data-' + name)) || '';
} else {
return this.each(function() {
if(this.dataset) {
this.dataset = value;
} else {
this.setAttribute('data-' + name, value);
}
});
}
}
}
function domManip(collection, htmlstr, callback) {
if(typeof htmlstr != 'string') return collection;
var node, first, tmp, i, l = collection.length;
var iNoClone = l - 1;
if(l) {
node = buildNode(htmlstr, collection[0].ownerDocument);
first = node.firstChild;
if(node.childNodes.length === 1) {
node = first;
}
if(first) {
for(i = 0; i < l; i++) {
if(i !== iNoClone) {
tmp = node.cloneNode(true);
} else {
tmp = node;
}
callback.call(collection[i], tmp);
}
}
}
return collection;
}
function buildNode(htmlstr, context) {
var fragment = context.createDocumentFragment();
var node = fragment.appendChild(context.createElement("div"));
node.innerHTML = htmlstr;
return node;
}
jQuery.fn.init.prototype = jQuery.fn;
return jQuery;
});
