{"id":1367,"date":"2010-10-30T22:51:00","date_gmt":"2010-10-30T02:51:00","guid":{"rendered":""},"modified":"2013-11-25T18:31:15","modified_gmt":"2013-11-25T10:31:15","slug":"jquery%e5%b8%b8%e7%94%a8%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%94%be%e9%80%81","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/1367.html","title":{"rendered":"jQuery\u5e38\u7528\u6280\u5de7\u5927\u653e\u9001"},"content":{"rendered":"

1\u3001\u5173\u4e8e\u9875\u9762\u5143\u7d20\u7684\u5f15\u7528<\/p>\n

\u901a\u8fc7jquery\u7684$()\u5f15\u7528\u5143\u7d20\u5305\u62ec\u901a\u8fc7id\u3001class\u3001\u5143\u7d20\u540d\u4ee5\u53ca\u5143\u7d20\u7684\u5c42\u7ea7\u5173\u7cfb\u53cadom\u6216\u8005xpath\u6761\u4ef6\u7b49\u65b9\u6cd5\uff0c\u4e14\u8fd4\u56de\u7684\u5bf9\u8c61\u4e3ajquery\u5bf9\u8c61\uff08\u96c6\u5408\u5bf9\u8c61\uff09\uff0c\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528dom\u5b9a\u4e49\u7684\u65b9\u6cd5\u3002<\/p>\n

2\u3001jQuery\u5bf9\u8c61\u4e0edom\u5bf9\u8c61\u7684\u8f6c\u6362<\/p>\n

\u53ea\u6709jquery\u5bf9\u8c61\u624d\u80fd\u4f7f\u7528jquery\u5b9a\u4e49\u7684\u65b9\u6cd5\u3002\u6ce8\u610fdom\u5bf9\u8c61\u548cjquery\u5bf9\u8c61\u662f\u6709\u533a\u522b\u7684\uff0c\u8c03\u7528\u65b9\u6cd5\u65f6\u8981\u6ce8\u610f\u64cd\u4f5c\u7684\u662fdom\u5bf9\u8c61\u8fd8\u662fjquery\u5bf9\u8c61\u3002<\/p>\n

\u666e\u901a\u7684dom\u5bf9\u8c61\u4e00\u822c\u53ef\u4ee5\u901a\u8fc7$()\u8f6c\u6362\u6210jquery\u5bf9\u8c61\u3002<\/p>\n

\u5982\uff1a$(document.getElementById(\u201dmsg\u201d))\u5219\u4e3ajquery\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528jquery\u7684\u65b9\u6cd5\u3002<\/p>\n

\u7531\u4e8ejquery\u5bf9\u8c61\u672c\u8eab\u662f\u4e00\u4e2a\u96c6\u5408\u3002\u6240\u4ee5\u5982\u679cjquery\u5bf9\u8c61\u8981\u8f6c\u6362\u4e3adom\u5bf9\u8c61\u5219\u5fc5\u987b\u53d6\u51fa\u5176\u4e2d\u7684\u67d0\u4e00\u9879\uff0c\u4e00\u822c\u53ef\u901a\u8fc7\u7d22\u5f15\u53d6\u51fa\u3002<\/p>\n

\u5982\uff1a$(\u201d#msg\u201d)[0]\uff0c$(\u201ddiv\u201d).eq(1)[0]\uff0c$(\u201ddiv\u201d).get()[1]\uff0c$(\u201dtd\u201d)[5]\u8fd9\u4e9b\u90fd\u662fdom\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528dom\u4e2d\u7684\u65b9\u6cd5\uff0c\u4f46\u4e0d\u80fd\u518d\u4f7f\u7528Jquery\u7684\u65b9\u6cd5\u3002<\/p>\n

\u4ee5\u4e0b\u51e0\u79cd\u5199\u6cd5\u90fd\u662f\u6b63\u786e\u7684\uff1a<\/p>\n

\r\n$(\u201d#msg\u201d).html();\r\n$(\u201d#msg\u201d)[0].innerHTML;\r\n$(\u201d#msg\u201d).eq(0)[0].innerHTML;\r\n$(\u201d#msg\u201d).get(0).innerHTML;\r\n<\/pre>\n
3\u3001\u5982\u4f55\u83b7\u53d6jQuery\u96c6\u5408\u7684\u67d0\u4e00\u9879<\/p>\n
\u5bf9\u4e8e\u83b7\u53d6\u7684\u5143\u7d20\u96c6\u5408\uff0c\u83b7\u53d6\u5176\u4e2d\u7684\u67d0\u4e00\u9879\uff08\u901a\u8fc7\u7d22\u5f15\u6307\u5b9a\uff09\u53ef\u4ee5\u4f7f\u7528eq\u6216get(n)\u65b9\u6cd5\u6216\u8005\u7d22\u5f15\u53f7\u83b7\u53d6\uff0c\u8981\u6ce8\u610f\uff0ceq\u8fd4\u56de\u7684\u662fjquery\u5bf9\u8c61\uff0c\u800c get(n)\u548c\u7d22\u5f15\u8fd4\u56de\u7684\u662fdom\u5143\u7d20\u5bf9\u8c61\u3002\u5bf9\u4e8ejquery\u5bf9\u8c61\u53ea\u80fd\u4f7f\u7528jquery\u7684\u65b9\u6cd5\uff0c\u800cdom\u5bf9\u8c61\u53ea\u80fd\u4f7f\u7528dom\u7684\u65b9\u6cd5\uff0c\u5982\u8981\u83b7\u53d6\u7b2c\u4e09 \u4e2a<\/p>\n
\n
\u5143\u7d20\u7684\u5185\u5bb9\u3002\u6709\u5982\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n
\r\n$(\u201ddiv\u201d).eq(2).html();    \/\/\u8c03\u7528jquery\u5bf9\u8c61\u7684\u65b9\u6cd5\r\n$(\u201ddiv\u201d).get(2).innerHTML; \/\/\u8c03\u7528dom\u7684\u65b9\u6cd5\u5c5e\u6027\r\n<\/pre>\n
4\u3001\u540c\u4e00\u51fd\u6570\u5b9e\u73b0set\u548cget<\/p><\/div>\n
jQuery\u4e2d\u7684\u5f88\u591a\u65b9\u6cd5\u90fd\u662f\u5982\u6b64\uff0c\u4e3b\u8981\u5305\u62ec\u5982\u4e0b\u51e0\u4e2a\uff1a<\/p>\n
\r\n$(\u201d#msg\u201d).html();    \/\/\u8fd4\u56deid\u4e3amsg\u7684\u5143\u7d20\u8282\u70b9\u7684html\u5185\u5bb9\u3002\r\n$(\u201d#msg\u201d).html(\u201d<b>new content<\/b>\u201d);\r\n\/\/\u5c06\u201c<b>new content<\/b>\u201d \u4f5c\u4e3ahtml\u4e32\u5199\u5165id\u4e3amsg\u7684\u5143\u7d20\u8282\u70b9\u5185\u5bb9\u4e2d,\u9875\u9762\u663e\u793a\u7c97\u4f53\u7684new content\r\n\r\n$(\u201d#msg\u201d).text();    \/\/\u8fd4\u56deid\u4e3amsg\u7684\u5143\u7d20\u8282\u70b9\u7684\u6587\u672c\u5185\u5bb9\u3002\r\n$(\u201d#msg\u201d).text(\u201d<b>new content<\/b>\u201d);\r\n\/\/\u5c06\u201c<b>new content<\/b>\u201d \u4f5c\u4e3a\u666e\u901a\u6587\u672c\u4e32\u5199\u5165id\u4e3amsg\u7684\u5143\u7d20\u8282\u70b9\u5185\u5bb9\u4e2d,\u9875\u9762\u663e\u793a<b>new content<\/b>\r\n\r\n$(\u201d#msg\u201d).height();    \/\/\u8fd4\u56deid\u4e3amsg\u7684\u5143\u7d20\u7684\u9ad8\u5ea6\r\n$(\u201d#msg\u201d).height(\u201d300\u2033); \/\/\u5c06id\u4e3amsg\u7684\u5143\u7d20\u7684\u9ad8\u5ea6\u8bbe\u4e3a300\r\n$(\u201d#msg\u201d).width();    \/\/\u8fd4\u56deid\u4e3amsg\u7684\u5143\u7d20\u7684\u5bbd\u5ea6\r\n$(\u201d#msg\u201d).width(\u201d300\u2033); \/\/\u5c06id\u4e3amsg\u7684\u5143\u7d20\u7684\u5bbd\u5ea6\u8bbe\u4e3a300\r\n\r\n$(\u201dinput\u201d).val(\u201d); \/\/\u8fd4\u56de\u8868\u5355\u8f93\u5165\u6846\u7684value\u503c\r\n$(\u201dinput\u201d).val(\u201dtest\u201d); \/\/\u5c06\u8868\u5355\u8f93\u5165\u6846\u7684value\u503c\u8bbe\u4e3atest\r\n\r\n$(\u201d#msg\u201d).click(); \/\/\u89e6\u53d1id\u4e3amsg\u7684\u5143\u7d20\u7684\u5355\u51fb\u4e8b\u4ef6\r\n$(\u201d#msg\u201d).click(fn); \/\/\u4e3aid\u4e3amsg\u7684\u5143\u7d20\u5355\u51fb\u4e8b\u4ef6\u6dfb\u52a0\u51fd\u6570\r\n<\/pre>\n
\u540c\u6837blur,focus,select,submit\u4e8b\u4ef6\u90fd\u53ef\u4ee5\u6709\u7740\u4e24\u79cd\u8c03\u7528\u65b9\u6cd5\u3002<\/p>\n
5\u3001\u96c6\u5408\u5904\u7406\u529f\u80fd<\/p>\n
\u5bf9\u4e8ejquery\u8fd4\u56de\u7684\u96c6\u5408\u5185\u5bb9\u65e0\u9700\u6211\u4eec\u81ea\u5df1\u5faa\u73af\u904d\u5386\u5e76\u5bf9\u6bcf\u4e2a\u5bf9\u8c61\u5206\u522b\u505a\u5904\u7406\uff0cjquery\u5df2\u7ecf\u4e3a\u6211\u4eec\u63d0\u4f9b\u7684\u5f88\u65b9\u4fbf\u7684\u65b9\u6cd5\u8fdb\u884c\u96c6\u5408\u7684\u5904\u7406\u3002<\/p>\n
\u5305\u62ec\u4e24\u79cd\u5f62\u5f0f\uff1a<\/p>\n
\r\n$(\u201dp\u201d).each(function(i){this.style.color=['#f00','#0f0','#00f'][ i ]})\r\n\/\/\u4e3a\u7d22\u5f15\u5206\u522b\u4e3a0\uff0c1\uff0c2\u7684p\u5143\u7d20\u5206\u522b\u8bbe\u5b9a\u4e0d\u540c\u7684\u5b57\u4f53\u989c\u8272\u3002\r\n\r\n$(\u201dtr\u201d).each(function(i){this.style.backgroundColor=['#ccc','#fff'][i%2]})\r\n\/\/\u5b9e\u73b0\u8868\u683c\u7684\u9694\u884c\u6362\u8272\u6548\u679c\r\n\r\n$(\u201dp\u201d).click(function(){alert($(this).html())})\r\n\/\/\u4e3a\u6bcf\u4e2ap\u5143\u7d20\u589e\u52a0\u4e86click\u4e8b\u4ef6\uff0c\u5355\u51fb\u67d0\u4e2ap\u5143\u7d20\u5219\u5f39\u51fa\u5176\u5185\u5bb9\r\n<\/pre>\n
6\u3001\u6269\u5c55\u6211\u4eec\u9700\u8981\u7684\u529f\u80fd<\/p>\n
\r\n$.extend({\r\nmin: function(a, b){return a < b?a:b; },\r\nmax: function(a, b){return a > b?a:b; }\r\n}); \/\/\u4e3ajquery\u6269\u5c55\u4e86min,max\u4e24\u4e2a\u65b9\u6cd5\r\n<\/pre>\n
\u4f7f\u7528\u6269\u5c55\u7684\u65b9\u6cd5\uff08\u901a\u8fc7\u201c$.\u65b9\u6cd5\u540d\u201d\u8c03\u7528\uff09\uff1a<\/p>\n
\r\nalert(\u201da=10,b=20,max=\u201d+$.max(10,20)+\u201d,min=\u201d+$.min(10,20));\r\n<\/pre>\n
7\u3001\u652f\u6301\u65b9\u6cd5\u7684\u8fde\u5199<\/p>\n
\u6240\u8c13\u8fde\u5199\uff0c\u5373\u53ef\u4ee5\u5bf9\u4e00\u4e2ajquery\u5bf9\u8c61\u8fde\u7eed\u8c03\u7528\u5404\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n
\r\n$(\u201dp\u201d).click(function(){alert($(this).html())})\r\n.mouseover(function(){alert(\u2019mouse over event\u2019)})\r\n.each(function(i){this.style.color=['#f00','#0f0','#00f'][ i ]});\r\n<\/pre>\n
8\u3001\u64cd\u4f5c\u5143\u7d20\u7684\u6837\u5f0f<\/p>\n
\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n
\r\n$(\u201d#msg\u201d).css(\u201dbackground\u201d);    \/\/\u8fd4\u56de\u5143\u7d20\u7684\u80cc\u666f\u989c\u8272\r\n$(\u201d#msg\u201d).css(\u201dbackground\u201d,\u201d#ccc\u201d) \/\/\u8bbe\u5b9a\u5143\u7d20\u80cc\u666f\u4e3a\u7070\u8272\r\n$(\u201d#msg\u201d).height(300); $(\u201d#msg\u201d).width(\u201d200\u2033); \/\/\u8bbe\u5b9a\u5bbd\u9ad8\r\n$(\u201d#msg\u201d).css({ color: \u201cred\u201d, background: \u201cblue\u201d });\/\/\u4ee5\u540d\u503c\u5bf9\u7684\u5f62\u5f0f\u8bbe\u5b9a\u6837\u5f0f\r\n$(\u201d#msg\u201d).addClass(\u201dselect\u201d); \/\/\u4e3a\u5143\u7d20\u589e\u52a0\u540d\u79f0\u4e3aselect\u7684class\r\n$(\u201d#msg\u201d).removeClass(\u201dselect\u201d); \/\/\u5220\u9664\u5143\u7d20\u540d\u79f0\u4e3aselect\u7684class\r\n$(\u201d#msg\u201d).toggleClass(\u201dselect\u201d); \/\/\u5982\u679c\u5b58\u5728\uff08\u4e0d\u5b58\u5728\uff09\u5c31\u5220\u9664\uff08\u6dfb\u52a0\uff09\u540d\u79f0\u4e3aselect\u7684class\r\n<\/pre>\n
9\u3001\u5b8c\u5584\u7684\u4e8b\u4ef6\u5904\u7406\u529f\u80fd<\/p>\n
jQuery\u5df2\u7ecf\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5404\u79cd\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\uff0c\u6211\u4eec\u65e0\u9700\u5728html\u5143\u7d20\u4e0a\u76f4\u63a5\u5199\u4e8b\u4ef6\uff0c\u800c\u53ef\u4ee5\u76f4\u63a5\u4e3a\u901a\u8fc7jquery\u83b7\u53d6\u7684\u5bf9\u8c61\u6dfb\u52a0\u4e8b\u4ef6\u3002<\/p>\n
\r\n$(\u201d#msg\u201d).click(function(){alert(\u201dgood\u201d)}) \/\/\u4e3a\u5143\u7d20\u6dfb\u52a0\u4e86\u5355\u51fb\u4e8b\u4ef6\r\n$(\u201dp\u201d).click(function(i){this.style.color=['#f00','#0f0','#00f'][ i ]})\r\n\/\/\u4e3a\u4e09\u4e2a\u4e0d\u540c\u7684p\u5143\u7d20\u5355\u51fb\u4e8b\u4ef6\u5206\u522b\u8bbe\u5b9a\u4e0d\u540c\u7684\u5904\u7406\r\n<\/pre>\n
jQuery\u4e2d\u51e0\u4e2a\u81ea\u5b9a\u4e49\u7684\u4e8b\u4ef6\uff1a<\/p>\n
(1)hover(fn1,fn2)\uff1a\u4e00\u4e2a\u6a21\u4eff\u60ac\u505c\u4e8b\u4ef6\uff08\u9f20\u6807\u79fb\u52a8\u5230\u4e00\u4e2a\u5bf9\u8c61\u4e0a\u9762\u53ca\u79fb\u51fa\u8fd9\u4e2a\u5bf9\u8c61\uff09\u7684\u65b9\u6cd5\u3002\u5f53\u9f20\u6807\u79fb\u52a8\u5230\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e0a\u9762\u65f6\uff0c\u4f1a\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u51fd\u6570\u3002\u5f53\u9f20\u6807\u79fb\u51fa\u8fd9\u4e2a\u5143\u7d20\u65f6\uff0c\u4f1a\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e8c\u4e2a\u51fd\u6570\u3002<\/p>\n
\r\n\/\/\u5f53\u9f20\u6807\u653e\u5728\u8868\u683c\u7684\u67d0\u884c\u4e0a\u65f6\u5c06class\u7f6e\u4e3aover\uff0c\u79bb\u5f00\u65f6\u7f6e\u4e3aout\u3002\r\n$(\u201dtr\u201d).hover(function(){\r\n$(this).addClass(\u201dover\u201d);\r\n},\r\nfunction(){\r\n$(this).addClass(\u201dout\u201d);\r\n});\r\n<\/pre>\n
\uff082\uff09ready(fn):\u5f53DOM\u8f7d\u5165\u5c31\u7eea\u53ef\u4ee5\u67e5\u8be2\u53ca\u64cd\u7eb5\u65f6\u7ed1\u5b9a\u4e00\u4e2a\u8981\u6267\u884c\u7684\u51fd\u6570\u3002<\/p>\n
\r\n$(document).ready(function(){alert(\u201dLoad Success\u201d)})\r\n\/\/\u9875\u9762\u52a0\u8f7d\u5b8c\u6bd5\u63d0\u793a\u201cLoad Success\u201d,\u76f8\u5f53\u4e8eonload\u4e8b\u4ef6\u3002\u4e0e$(fn)\u7b49\u4ef7\r\n<\/pre>\n
\uff083\uff09toggle(evenFn,oddFn): \u6bcf\u6b21\u70b9\u51fb\u65f6\u5207\u6362\u8981\u8c03\u7528\u7684\u51fd\u6570\u3002\u5982\u679c\u70b9\u51fb\u4e86\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\uff0c\u5219\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e00\u4e2a\u51fd\u6570\uff0c\u5f53\u518d\u6b21\u70b9\u51fb\u540c\u4e00\u5143\u7d20\u65f6\uff0c\u5219\u89e6\u53d1\u6307\u5b9a\u7684\u7b2c\u4e8c\u4e2a\u51fd\u6570\u3002\u968f\u540e\u7684\u6bcf\u6b21\u70b9\u51fb\u90fd\u91cd\u590d\u5bf9\u8fd9\u4e24\u4e2a\u51fd\u6570\u7684\u8f6e\u756a\u8c03\u7528\u3002<\/p>\n
\r\n\/\/\u6bcf\u6b21\u70b9\u51fb\u65f6\u8f6e\u6362\u6dfb\u52a0\u548c\u5220\u9664\u540d\u4e3aselected\u7684class\u3002\r\n$(\u201dp\u201d).toggle(function(){\r\n$(this).addClass(\u201dselected\u201d);\r\n},function(){\r\n$(this).removeClass(\u201dselected\u201d);\r\n});\r\n<\/pre>\n
\uff084\uff09trigger(eventtype): \u5728\u6bcf\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e0a\u89e6\u53d1\u67d0\u7c7b\u4e8b\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n
\r\n$(\u201dp\u201d).trigger(\u201dclick\u201d);    \/\/\u89e6\u53d1\u6240\u6709p\u5143\u7d20\u7684click\u4e8b\u4ef6\r\n<\/pre>\n
\uff085\uff09bind(eventtype,fn)\uff0cunbind(eventtype): \u4e8b\u4ef6\u7684\u7ed1\u5b9a\u4e0e\u53cd\u7ed1\u5b9a\u4ece\u6bcf\u4e00\u4e2a\u5339\u914d\u7684\u5143\u7d20\u4e2d\uff08\u6dfb\u52a0\uff09\u5220\u9664\u7ed1\u5b9a\u7684\u4e8b\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n
\r\n$(\u201dp\u201d).bind(\u201dclick\u201d, function(){alert($(this).text());}); \/\/\u4e3a\u6bcf\u4e2ap\u5143\u7d20\u6dfb\u52a0\u5355\u51fb\u4e8b\u4ef6\r\n$(\u201dp\u201d).unbind(); \/\/\u5220\u9664\u6240\u6709p\u5143\u7d20\u4e0a\u7684\u6240\u6709\u4e8b\u4ef6\r\n$(\u201dp\u201d).unbind(\u201dclick\u201d) \/\/\u5220\u9664\u6240\u6709p\u5143\u7d20\u4e0a\u7684\u5355\u51fb\u4e8b\u4ef6\r\n<\/pre>\n
10\u3001\u51e0\u4e2a\u5b9e\u7528\u7279\u6548\u529f\u80fd<\/p>\n
\u5176\u4e2dtoggle()\u548cslidetoggle()\u65b9\u6cd5\u63d0\u4f9b\u4e86\u72b6\u6001\u5207\u6362\u529f\u80fd\u3002
\n\u5982toggle()\u65b9\u6cd5\u5305\u62ec\u4e86hide()\u548cshow()\u65b9\u6cd5\u3002
\nslideToggle()\u65b9\u6cd5\u5305\u62ec\u4e86slideDown()\u548cslideUp\u65b9\u6cd5\u3002<\/p>\n
11\u3001\u51e0\u4e2a\u6709\u7528\u7684jQuery\u65b9\u6cd5<\/p>\n
$.browser.\u6d4f\u89c8\u5668\u7c7b\u578b\uff1a\u68c0\u6d4b\u6d4f\u89c8\u5668\u7c7b\u578b\u3002\u6709\u6548\u53c2\u6570\uff1asafari, opera, msie, mozilla\u3002\u5982\u68c0\u6d4b\u662f\u5426ie\uff1a$.browser.isie\uff0c\u662fie\u6d4f\u89c8\u5668\u5219\u8fd4\u56detrue\u3002<\/p>\n
$.each(obj, fn)\uff1a\u901a\u7528\u7684\u8fed\u4ee3\u51fd\u6570\u3002\u53ef\u7528\u4e8e\u8fd1\u4f3c\u5730\u8fed\u4ee3\u5bf9\u8c61\u548c\u6570\u7ec4\uff08\u4ee3\u66ff\u5faa\u73af\uff09\u3002\u5982<\/p>\n
$.each( [0,1,2], function(i, n){ alert( \u201cItem #\u201d + i + \u201c: \u201d + n ); });<\/p>\n
\u7b49\u4ef7\u4e8e\uff1a<\/p>\n
\r\nvar tempArr=[0,1,2];\r\nfor(var i=0;i<tempArr.length;i++){\r\nalert(\u201dItem #\u201d+i+\u201d: \u201c+tempArr[ i ]);\r\n}\r\n<\/pre>\n
\u4e5f\u53ef\u4ee5\u5904\u7406json\u6570\u636e\uff0c\u5982<\/p>\n
\r\n$.each( { name: \u201cJohn\u201d, lang: \u201cJS\u201d }, function(i, n){ alert( \u201cName: \u201d + i + \u201c, Value: \u201d\r\n + n ); });\r\n<\/pre>\n
\u7ed3\u679c\u4e3a\uff1a<\/p>\n
Name:name, Value:John
\nName:lang, Value:JS<\/p>\n
$.extend(target,prop1,propN)\uff1a\u7528\u4e00\u4e2a\u6216\u591a\u4e2a\u5176\u4ed6\u5bf9\u8c61\u6765\u6269\u5c55\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd4\u56de\u8fd9\u4e2a\u88ab\u6269\u5c55\u7684\u5bf9\u8c61\u3002\u8fd9\u662fjquery\u5b9e\u73b0\u7684\u7ee7\u627f\u65b9\u5f0f\u3002<\/p>\n
\u5982\uff1a<\/p>\n
\r\n$.extend(settings, options);\r\n\/\/\u5408\u5e76settings\u548coptions\uff0c\u5e76\u5c06\u5408\u5e76\u7ed3\u679c\u8fd4\u56desettings\u4e2d\uff0c\u76f8\u5f53\u4e8eoptions\u7ee7\u627fsetting\u5e76\u5c06\u7ee7\u627f\u7ed3\u679c\u4fdd\u5b58\u5728setting\u4e2d\u3002\r\nvar settings = $.extend({}, defaults, options);\r\n\/\/\u5408\u5e76defaults\u548coptions\uff0c\u5e76\u5c06\u5408\u5e76\u7ed3\u679c\u8fd4\u56de\u5230setting\u4e2d\u800c\u4e0d\u8986\u76d6default\u5185\u5bb9\u3002\u53ef\u4ee5\u6709\u591a\u4e2a\u53c2\u6570\uff08\u5408\u5e76\u591a\u9879\u5e76\u8fd4\u56de\uff09\r\n\r\n$.map(array, fn)\uff1a\u6570\u7ec4\u6620\u5c04\u3002\u628a\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u9879\u76ee(\u5904\u7406\u8f6c\u6362\u540e)\u4fdd\u5b58\u5230\u5230\u53e6\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\uff0c\u5e76\u8fd4\u56de\u751f\u6210\u7684\u65b0\u6570\u7ec4\u3002\u5982\uff1a\r\n\r\nvar tempArr=$.map( [0,1,2], function(i){ return i + 4; });\r\ntempArr\u5185\u5bb9\u4e3a\uff1a[4,5,6]\r\nvar tempArr=$.map( [0,1,2], function(i){ return i > 0 ? i + 1 : null; });\r\ntempArr\u5185\u5bb9\u4e3a\uff1a[2,3]\r\n\r\n$.merge(arr1,arr2):\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\u5e76\u5220\u9664\u5176\u4e2d\u91cd\u590d\u7684\u9879\u76ee\u3002\r\n$.merge( [0,1,2], [2,3,4] ) \/\/\u8fd4\u56de[0,1,2,3,4]\r\n\r\n$.trim(str)\uff1a\u5220\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7a7a\u767d\u5b57\u7b26\u3002\r\n\u5982\uff1a$.trim(\u201d     hello, how are you? \u201c); \/\/\u8fd4\u56de\u201dhello,how are you? \u201d\r\n<\/pre>\n
12\u3001\u89e3\u51b3\u81ea\u5b9a\u4e49\u65b9\u6cd5\u6216\u5176\u4ed6\u7c7b\u5e93\u4e0ejQuery\u7684\u51b2\u7a81<\/p>\n
\u5f88\u591a\u65f6\u5019\u6211\u4eec\u81ea\u5df1\u5b9a\u4e49\u4e86$(id)\u65b9\u6cd5\u6765\u83b7\u53d6\u4e00\u4e2a\u5143\u7d20\uff0c\u6216\u8005\u5176\u4ed6\u7684\u4e00\u4e9bjs\u7c7b\u5e93\u5982prototype\u4e5f\u90fd\u5b9a\u4e49\u4e86$\u65b9\u6cd5\uff0c\u5982\u679c\u540c\u65f6\u628a\u8fd9\u4e9b\u5185\u5bb9\u653e\u5728\u4e00\u8d77\u5c31\u4f1a\u5f15\u8d77\u53d8\u91cf\u65b9\u6cd5\u5b9a\u4e49\u51b2\u7a81\uff0cJquery\u5bf9\u6b64\u4e13\u95e8\u63d0\u4f9b\u4e86\u65b9\u6cd5\u7528\u4e8e\u89e3\u51b3\u6b64\u95ee\u9898\u3002
\n\u4f7f \u7528jquery\u4e2d\u7684jQuery.noConflict();\u65b9\u6cd5\u5373\u53ef\u628a\u53d8\u91cf$\u7684\u63a7\u5236\u6743\u8ba9\u6e21\u7ed9\u7b2c\u4e00\u4e2a\u5b9e\u73b0\u5b83\u7684\u90a3\u4e2a\u5e93\u6216\u4e4b\u524d\u81ea\u5b9a\u4e49\u7684$\u65b9\u6cd5\u3002\u4e4b\u540e\u5e94\u7528 Jquery\u7684\u65f6\u5019\u53ea\u8981\u5c06\u6240\u6709\u7684$\u6362\u6210jQuery\u5373\u53ef\uff0c\u5982\u539f\u6765\u5f15\u7528\u5bf9\u8c61\u65b9\u6cd5$(\u201d#msg\u201d)\u6539\u4e3ajQuery(\u201d#msg\u201d)\u3002
\n\u5982\uff1a<\/p>\n
\r\njQuery.noConflict();\r\n\/\/ \u5f00\u59cb\u4f7f\u7528jQuery\r\njQuery(\u201ddiv p\u201d).hide();\r\n\/\/ \u4f7f\u7528\u5176\u4ed6\u5e93\u7684 $()\r\n$(\u201dcontent\u201d).style.display = \u2018none\u2019;\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
1\u3001\u5173\u4e8e\u9875\u9762\u5143\u7d20\u7684\u5f15\u7528 \u901a\u8fc7jquery\u7684$()\u5f15\u7528\u5143\u7d20\u5305\u62ec\u901a\u8fc7id\u3001class\u3001\u5143\u7d20\u540d\u4ee5\u53ca\u5143\u7d20\u7684\u5c42\u7ea7\u5173\u7cfb\u53cad […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1367","post","type-post","status-publish","format-standard","hentry","category-code_related"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=1367"}],"version-history":[{"count":1,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1367\/revisions"}],"predecessor-version":[{"id":5226,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1367\/revisions\/5226"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=1367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=1367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=1367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}