tuzhu_req.js 处理文件请求加载异步同步功能，仿效百度图片首页效果制作
/*土著人开发的require组件 @土著人 (http://www.tuzhuren.com)*/! function() { function e() {} function.prototype.bind || (function.prototype.bind = function(t) { var n = this; if (function != typeof n) throw new typeerror(function.prototype.bind called on incompatible + n); var o = r.call(arguments, 1), i = function() { if (this instanceof i) { var e = n.apply(this, o.concat(r.call(arguments))); return object(e) === e ? e : this; } return n.apply(t, o.concat(r.call(arguments))); }; return n.prototype && (e.prototype = n.prototype, i.prototype = new e, e.prototype = null), i; }); var t = array.prototype, r = t.slice;}();var require, define;! function(e) { function t(e, t) { if (!(e in u)) { u[e] = !0; var r = document.createelement(script); if (t) { var o = settimeout(t, require.timeout); r.onerror = function() { cleartimeout(o), t() }, r.onreadystatechange = function() { complete == this.readystate && cleartimeout(o) } } return r.type = text/javascript, r.src = e, n.appendchild(r), r; } } function r(e, r, n) { var i = o[e] || (o[e] = []); i.push(r); var a, u = c[e] || {}, s = u.pkg; a = s ? p[s].url : u.url || e, t(a, n && function() { n(e); }); } function isfunction(it) { return object.prototype.tostring.call(it) === '[object function]'; } function isarray(it) { return object.prototype.tostring.call(it) === '[object array]'; } var n = document.getelementsbytagname(head)[0], o = {}, i = {}, a = {}, u = {}, c = {}, p = {}; define = function(name, deps, callback) { if (isarray(deps) && isfunction(callback)) { deps = callback; } i[name] = deps; var r = o[e]; if (r) { for (var n = 0, a = r.length; a > n; ++n) r[n](); delete o[name]; } }, require = function(e) { e = require.alias(e); var t = a[e]; if (t) return t.exports; var r = i[e]; if (!r) return false; t = a[e] = { exports: {} }; var n = function == typeof r ? r.apply(t, [require, t.exports, t]) : r; return n && (t.exports = n), t.exports; }, require.async = function(t, n, o) { function a(e) { for (var t = e.length - 1; t >= 0; --t) { var n = e[t], p = c[n]; p && deps in p && a(p.deps), n in i || n in s || (s[n] = !0, l++, r(n, u, o)); } } function u() { if (0 == l--) { var r, o, i = []; for (r = 0, o = t.length; o > r; ++r) try { i[r] = require(t[r]) } catch (a) {} n && n.apply(e, i); } } string == typeof t && (t = [t]); for (var p = t.length - 1; p >= 0; --p) t[p] = require.alias(t[p]); var s = {}, l = 0; a(t), u(); }, require.resourcemap = function(e) { var t, r; r = e.res; for (t in r) r.hasownproperty(t) && (c[t] = r[t]); r = e.pkg; for (t in r) r.hasownproperty(t) && (p[t] = r[t]); }, require.loadjs = function(e) { t(e); }, require.loadcss = function(e) { if (e.content) { var t = document.createelement(style); t.type = text/css, t.stylesheet ? t.stylesheet.csstext = e.content : t.innerhtml = e.content, n.appendchild(t); } else if (e.url) { var r = document.createelement(link); r.href = e.url, r.rel = stylesheet, r.type = text/css, n.appendchild(r); } }, require.alias = function(e) { return e }, require.timeout = 5e3, define.amd = { jquery: !0, version: 1.0.0 }}(this);! function() { (function() { var widgets = [], nameidxmap = {}, callbacks = [], remainings = 0; require.widget = { register: function(name) { var idx = nameidxmap[name]; if (idx == undefined) { nameidxmap[name] = widgets.length; widgets.push(1); remainings++; } else { widgets[idx]++; } }, ready: function(callback, ctx) { callbacks.push({ func: callback, context: ctx }); if (remainings < 1) { _ready(); } }, loaded: function(name) { var idx = nameidxmap[name], num = widgets[idx] - 1; widgets[idx] = num; if (num == 0 && remainings) { remainings--; } if (remainings < 1) { _ready(); } } }; function _ready() { var callback; while (callback = callbacks.pop()) { callback.func.call(callback.ctx); } } })();}();
希望本文能够给大家学习使用javascript处理文件请求加载异步同步功能有所帮助。