我在控制台中收到错误Uncaught ReferenceError: jQuery is not defined(anonymous function)。下面是我的代码
yii = (function ($) {
var pub = {
/**
* List of JS or CSS URLs that can be loaded multiple times via AJAX requests. Each script can be represented
* as either an absolute URL or a relative one.
*/
reloadableScripts: [],
/**
* The selector for clickable elements that need to support confirmation and form submission.
*/
clickableSelector: 'a, button, input[type="submit"], input[type="button"], input[type="reset"], input[type="image"]',
/**
* The selector for changeable elements that need to support confirmation and form submission.
*/
changeableSelector: 'select, input, textarea',
/**
* @return string|undefined the CSRF parameter name. Undefined is returned if CSRF validation is not enabled.
*/
getCsrfParam: function () {
return $('meta[name=csrf-param]').attr('content');
},
/**
* @return string|undefined the CSRF token. Undefined is returned if CSRF validation is not enabled.
*/
getCsrfToken: function () {
return $('meta[name=csrf-token]').attr('content');
},
/**
* Sets the CSRF token in the meta elements.
* This method is provided so that you can update the CSRF token with the latest one you obtain from the server.
* @param name the CSRF token name
* @param value the CSRF token value
*/
setCsrfToken: function (name, value) {
$('meta[name=csrf-param]').attr('content', name);
$('meta[name=csrf-token]').attr('content', value)
},
/**
* Updates all form CSRF input fields with the latest CSRF token.
* This method is provided to avoid cached forms containing outdated CSRF tokens.
*/
refreshCsrfToken: function () {
var token = pub.getCsrfToken();
if (token) {
$('form input[name="' + pub.getCsrfParam() + '"]').val(token);
}
},
/**
* Displays a confirmation dialog.
* The default implementation simply displays a js confirmation dialog.
* You may override this by setting `yii.confirm`.
* @param message the confirmation message.
* @param ok a callback to be called when the user confirms the message
* @param cancel a callback to be called when the user cancels the confirmation
*/
confirm: function (message, ok, cancel) {
if (confirm(message)) {
!ok || ok();
} else {
!cancel || cancel();
}
},
/**
* Handles the action triggered by user.
* This method recognizes the `data-method` attribute of the element. If the attribute exists,
* the method will submit the form containing this element. If there is no containing form, a form
* will be created and submitted using the method given by this attribute value (e.g. "post", "put").
* For hyperlinks, the form action will take the value of the "href" attribute of the link.
* For other elements, either the containing form action or the current page URL will be used
* as the form action URL.
*
* If the `data-method` attribute is not defined, the `href` attribute (if any) of the element
* will be assigned to `window.location`.
*
* Starting from version 2.0.3, the `data-params` attribute is also recognized when you specify
* `data-method`. The value of `data-params` should be a JSON representation of the data (name-value pairs)
* that should be submitted as hidden inputs. For example, you may use the following code to generate
* such a link:
*
* ```php
* use yii\helpers\Html;
* use yii\helpers\Json;
*
* echo Html::a('submit', ['site/foobar'], [
* 'data' => [
* 'method' => 'post',
* 'params' => [
* 'name1' => 'value1',
* 'name2' => 'value2',
* ],
* ],
* ];
* ```
*
* @param $e the jQuery representation of the element
*/
handleAction: function ($e) {
var method = $e.data('method'),
$form = $e.closest('form'),
action = $e.attr('href'),
params = $e.data('params');
if (method === undefined) {
if (action && action != '#') {
window.location = action;
} else if ($e.is(':submit') && $form.length) {
$form.trigger('submit');
}
return;
}
var newForm = !$form.length;
if (newForm) {
if (!action || !action.match(/(^\/|:\/\/)/)) {
action = window.location.href;
}
$form = $('<form method="' + method + '"></form>');
$form.attr('action', action);
var target = $e.attr('target');
if (target) {
$form.attr('target', target);
}
if (!method.match(/(get|post)/i)) {
$form.append('<input name="_method" value="' + method + '" type="hidden">');
method = 'POST';
}
if (!method.match(/(get|head|options)/i)) {
var csrfParam = pub.getCsrfParam();
if (csrfParam) {
$form.append('<input name="' + csrfParam + '" value="' + pub.getCsrfToken() + '" type="hidden">');
}
}
$form.hide().appendTo('body');
}
var activeFormData = $form.data('yiiActiveForm');
if (activeFormData) {
// remember who triggers the form submission. This is used by yii.activeForm.js
activeFormData.submitObject = $e;
}
// temporarily add hidden inputs according to data-params
if (params && $.isPlainObject(params)) {
$.each(params, function (idx, obj) {
$form.append('<input name="' + idx + '" value="' + obj + '" type="hidden">');
});
}
var oldMethod = $form.attr('method');
$form.attr('method', method);
var oldAction = null;
if (action && action != '#') {
oldAction = $form.attr('action');
$form.attr('action', action);
}
$form.trigger('submit');
if (oldAction != null) {
$form.attr('action', oldAction);
}
$form.attr('method', oldMethod);
// remove the temporarily added hidden inputs
if (params && $.isPlainObject(params)) {
$.each(params, function (idx, obj) {
$('input[name="' + idx + '"]', $form).remove();
});
}
if (newForm) {
$form.remove();
}
},
getQueryParams: function (url) {
var pos = url.indexOf('?');
if (pos < 0) {
return {};
}
var qs = url.substring(pos + 1).split('&');
for (var i = 0, result = {}; i < qs.length; i++) {
qs[i] = qs[i].split('=');
result[decodeURIComponent(qs[i][0])] = decodeURIComponent(qs[i][1]);
}
return result;
},
initModule: function (module) {
if (module.isActive === undefined || module.isActive) {
if ($.isFunction(module.init)) {
module.init();
}
$.each(module, function () {
if ($.isPlainObject(this)) {
pub.initModule(this);
}
});
}
},
init: function () {
initCsrfHandler();
initRedirectHandler();
initScriptFilter();
initDataMethods();
}
};
function initRedirectHandler() {
// handle AJAX redirection
$(document).ajaxComplete(function (event, xhr, settings) {
var url = xhr.getResponseHeader('X-Redirect');
if (url) {
window.location = url;
}
});
}
function initCsrfHandler() {
// automatically send CSRF token for all AJAX requests
$.ajaxPrefilter(function (options, originalOptions, xhr) {
if (!options.crossDomain && pub.getCsrfParam()) {
xhr.setRequestHeader('X-CSRF-Token', pub.getCsrfToken());
}
});
pub.refreshCsrfToken();
}
function initDataMethods() {
var handler = function (event) {
var $this = $(this),
method = $this.data('method'),
message = $this.data('confirm');
if (method === undefined && message === undefined) {
return true;
}
if (message !== undefined) {
pub.confirm(message, function () {
pub.handleAction($this);
});
} else {
pub.handleAction($this);
}
event.stopImmediatePropagation();
return false;
};
// handle data-confirm and data-method for clickable and changeable elements
$(document).on('click.yii', pub.clickableSelector, handler)
.on('change.yii', pub.changeableSelector, handler);
}
function initScriptFilter() {
var hostInfo = location.protocol + '//' + location.host;
var loadedScripts = $('script[src]').map(function () {
return this.src.charAt(0) === '/' ? hostInfo + this.src : this.src;
}).toArray();
$.ajaxPrefilter('script', function (options, originalOptions, xhr) {
if (options.dataType == 'jsonp') {
return;
}
var url = options.url.charAt(0) === '/' ? hostInfo + options.url : options.url;
if ($.inArray(url, loadedScripts) === -1) {
loadedScripts.push(url);
} else {
var found = $.inArray(url, $.map(pub.reloadableScripts, function (script) {
return script.charAt(0) === '/' ? hostInfo + script : script;
})) !== -1;
if (!found) {
xhr.abort();
}
}
});
$(document).ajaxComplete(function (event, xhr, settings) {
var styleSheets = [];
$('link[rel=stylesheet]').each(function () {
if ($.inArray(this.href, pub.reloadableScripts) !== -1) {
return;
}
if ($.inArray(this.href, styleSheets) == -1) {
styleSheets.push(this.href)
} else {
$(this).remove();
}
})
});
}
return pub;
})(jQuery);
jQuery(document).ready(function () {
yii.initModule(yii);
});
有什么问题？我错过了什么。我在javascript方面不是很好。这个js文件yii.activeForm.js在web / assets / b807742中 因为这个错误模态不起作用
答案 0 :(得分：3)
您需要插入：
<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
作为您网页上的第一个脚本。这是您需要jQuery库来实现此功能的。它是其中一个依赖项。