jQuery源代码中定义的jQuery.ajax在哪里？
我正在尝试找到源代码中定义jQuery.ajax()位置。 但是，使用grep似乎不起作用。
它在哪里？
谢谢。
> grep jQuery.ajax src/* src/ajax.js:// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport src/ajax.js: flatOptions = jQuery.ajaxSettings.flatOptions || {}; src/ajax.js: params = jQuery.param( params, jQuery.ajaxSettings.traditional ); src/ajax.js: jQuery.ajax({ src/ajax.js: return jQuery.ajax({ src/ajax.js: ajaxExtend( target, jQuery.ajaxSettings ); src/ajax.js: target = jQuery.ajaxSettings; src/ajax.js: s = jQuery.ajaxSetup( {}, options ), src/ajax.js: traditional = jQuery.ajaxSettings.traditional; src/ajax.js:// Want to move this to jQuery.ajax some day src/manipulation.js: jQuery.ajax({
你去了： http ： //james.padolsey.com/jquery/#v=1.6.2&fn=jQuery.ajax
该站点对于浏览jQuery源代码非常有用。
上面链接的来源死了：
function (url, options) { // If url is an object, simulate pre-1.5 signature if (typeof url === "object") { options = url; url = undefined; } // Force options to be an object options = options || {}; var // Create the final options object s = jQuery.ajaxSetup({}, options), // Callbacks context callbackContext = s.context || s, // Context for global events // It's the callbackContext if one was provided in the options // and if it's a DOM node or a jQuery collection globalEventContext = callbackContext !== s && (callbackContext.nodeType || callbackContext instanceof jQuery) ? jQuery(callbackContext) : jQuery.event, // Deferreds deferred = jQuery.Deferred(), completeDeferred = jQuery._Deferred(), // Status-dependent callbacks statusCode = s.statusCode || {}, // ifModified key ifModifiedKey, // Headers (they are sent all at once) requestHeaders = {}, requestHeadersNames = {}, // Response headers responseHeadersString, responseHeaders, // transport transport, // timeout handle timeoutTimer, // Cross-domain detection vars parts, // The jqXHR state state = 0, // To know if global events are to be dispatched fireGlobals, // Loop variable i, // Fake xhr jqXHR = { readyState: 0, // Caches the header setRequestHeader: function (name, value) { if (!state) { var lname = name.toLowerCase(); name = requestHeadersNames[lname] = requestHeadersNames[lname] || name; requestHeaders[name] = value; } return this; }, // Raw string getAllResponseHeaders: function () { return state === 2 ? responseHeadersString : null; }, // Builds headers hashtable if needed getResponseHeader: function (key) { var match; if (state === 2) { if (!responseHeaders) { responseHeaders = {}; while ((match = rheaders.exec(responseHeadersString))) { responseHeaders[match[1].toLowerCase()] = match[2]; } } match = responseHeaders[key.toLowerCase()]; } return match === undefined ? null : match; }, // Overrides response content-type header overrideMimeType: function (type) { if (!state) { s.mimeType = type; } return this; }, // Cancel the request abort: function (statusText) { statusText = statusText || "abort"; if (transport) { transport.abort(statusText); } done(0, statusText); return this; } }; // Callback for when everything is done // It is defined here because jslint complains if it is declared // at the end of the function (which would be more logical and readable) function done(status, statusText, responses, headers) { // Called once if (state === 2) { return; } // State is "done" now state = 2; // Clear timeout if it exists if (timeoutTimer) { clearTimeout(timeoutTimer); } // Dereference transport for early garbage collection // (no matter how long the jqXHR object will be used) transport = undefined; // Cache response headers responseHeadersString = headers || ""; // Set readyState jqXHR.readyState = status ? 4 : 0; var isSuccess, success, error, response = responses ? ajaxHandleResponses(s, jqXHR, responses) : undefined, lastModified, etag; // If successful, handle type chaining if (status >= 200 && status < 300 || status === 304) { // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. if (s.ifModified) { if ((lastModified = jqXHR.getResponseHeader("Last-Modified"))) { jQuery.lastModified[ifModifiedKey] = lastModified; } if ((etag = jqXHR.getResponseHeader("Etag"))) { jQuery.etag[ifModifiedKey] = etag; } } // If not modified if (status === 304) { statusText = "notmodified"; isSuccess = true; // If we have data } else { try { success = ajaxConvert(s, response); statusText = "success"; isSuccess = true; } catch(e) { // We have a parsererror statusText = "parsererror"; error = e; } } } else { // We extract error from statusText // then normalize statusText and status for non-aborts error = statusText; if (!statusText || status) { statusText = "error"; if (status < 0) { status = 0; } } } // Set data for the fake xhr object jqXHR.status = status; jqXHR.statusText = statusText; // Success/Error if (isSuccess) { deferred.resolveWith(callbackContext, [success, statusText, jqXHR]); } else { deferred.rejectWith(callbackContext, [jqXHR, statusText, error]); } // Status-dependent callbacks jqXHR.statusCode(statusCode); statusCode = undefined; if (fireGlobals) { globalEventContext.trigger("ajax" + (isSuccess ? "Success" : "Error"), [jqXHR, s, isSuccess ? success : error]); } // Complete completeDeferred.resolveWith(callbackContext, [jqXHR, statusText]); if (fireGlobals) { globalEventContext.trigger("ajaxComplete", [jqXHR, s]); // Handle the global AJAX counter if (! (--jQuery.active)) { jQuery.event.trigger("ajaxStop"); } } } // Attach deferreds deferred.promise(jqXHR); jqXHR.success = jqXHR.done; jqXHR.error = jqXHR.fail; jqXHR.complete = completeDeferred.done; // Status-dependent callbacks jqXHR.statusCode = function (map) { if (map) { var tmp; if (state < 2) { for (tmp in map) { statusCode[tmp] = [statusCode[tmp], map[tmp]]; } } else { tmp = map[jqXHR.status]; jqXHR.then(tmp, tmp); } } return this; }; // Remove hash character (#7531: and string promotion) // Add protocol if not provided (#5866: IE7 issue with protocol-less urls) // We also use the url parameter if available s.url = ((url || s.url) + "").replace(rhash, "").replace(rprotocol, ajaxLocParts[1] + "//"); // Extract dataTypes list s.dataTypes = jQuery.trim(s.dataType || "*").toLowerCase().split(rspacesAjax); // Determine if a cross-domain request is in order if (s.crossDomain == null) { parts = rurl.exec(s.url.toLowerCase()); s.crossDomain = !!(parts && (parts[1] != ajaxLocParts[1] || parts[2] != ajaxLocParts[2] || (parts[3] || (parts[1] === "http:" ? 80 : 443)) != (ajaxLocParts[3] || (ajaxLocParts[1] === "http:" ? 80 : 443)))); } // Convert data if not already a string if (s.data && s.processData && typeof s.data !== "string") { s.data = jQuery.param(s.data, s.traditional); } // Apply prefilters inspectPrefiltersOrTransports(prefilters, s, options, jqXHR); // If request was aborted inside a prefiler, stop there if (state === 2) { return false; } // We can fire global events as of now if asked to fireGlobals = s.global; // Uppercase the type s.type = s.type.toUpperCase(); // Determine if request has content s.hasContent = !rnoContent.test(s.type); // Watch for a new set of requests if (fireGlobals && jQuery.active++===0) { jQuery.event.trigger("ajaxStart"); } // More options handling for requests with no content if (!s.hasContent) { // If data is available, append data to url if (s.data) { s.url += (rquery.test(s.url) ? "&" : "?") + s.data; } // Get ifModifiedKey before adding the anti-cache parameter ifModifiedKey = s.url; // Add anti-cache in url if needed if (s.cache === false) { var ts = jQuery.now(), // try replacing _= if it is there ret = s.url.replace(rts, "$1_=" + ts); // if nothing was replaced, add timestamp to the end s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : ""); } } // Set the correct header, if data is being sent if (s.data && s.hasContent && s.contentType !== false || options.contentType) { jqXHR.setRequestHeader("Content-Type", s.contentType); } // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. if (s.ifModified) { ifModifiedKey = ifModifiedKey || s.url; if (jQuery.lastModified[ifModifiedKey]) { jqXHR.setRequestHeader("If-Modified-Since", jQuery.lastModified[ifModifiedKey]); } if (jQuery.etag[ifModifiedKey]) { jqXHR.setRequestHeader("If-None-Match", jQuery.etag[ifModifiedKey]); } } // Set the Accepts header for the server, depending on the dataType jqXHR.setRequestHeader("Accept", s.dataTypes[0] && s.accepts[s.dataTypes[0]] ? s.accepts[s.dataTypes[0]] + (s.dataTypes[0] !== "*" ? ", */*; q=0.01" : "") : s.accepts["*"]); // Check for headers option for (i in s.headers) { jqXHR.setRequestHeader(i, s.headers[i]); } // Allow custom headers/mimetypes and early abort if (s.beforeSend && (s.beforeSend.call(callbackContext, jqXHR, s) === false || state === 2)) { // Abort if not done already jqXHR.abort(); return false; } // Install callbacks on deferreds for (i in { success: 1, error: 1, complete: 1 }) { jqXHR[i](s[i]); } // Get transport transport = inspectPrefiltersOrTransports(transports, s, options, jqXHR); // If no transport, we auto-abort if (!transport) { done(-1, "No Transport"); } else { jqXHR.readyState = 1; // Send global event if (fireGlobals) { globalEventContext.trigger("ajaxSend", [jqXHR, s]); } // Timeout if (s.async && s.timeout > 0) { timeoutTimer = setTimeout(function () { jqXHR.abort("timeout"); }, s.timeout); } try { state = 1; transport.send(requestHeaders, done); } catch(e) { // Propagate exception as error if not done if (status < 2) { done(-1, e); // Simply rethrow otherwise } else { jQuery.error(e); } } } return jqXHR; }
在ajax.js ，第383行 ：
jQuery.extend({ //... ajax: function( url, options ) {