Javascript AngularJS - ReferenceError: $ 未定义
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AngularJS - ReferenceError: $ is not defined
提问by Demian
I'm getting the following error when I try to do this
尝试执行此操作时出现以下错误
var fbcanvas = $('#fbcanvas');
var fbcanvas = $('#fbcanvas');
This is the error I got
这是我得到的错误
ReferenceError: $ is not defined
参考错误：$ 未定义
This is my JS code
这是我的JS代码
var feedbackModule = angular.module('feedbackModule', [ 'ui.bootstrap', 'dialogs' ]);
feedbackModule.controller('feedbackDialog', function($scope, $rootScope, $timeout, $dialogs) {
$scope.confirmed = 'You have yet to be confirmed!';
$scope.name = '"Your name here."';
$scope.sendFeedback = function() {
html2canvas(document.body, {
onrendered: function(canvas) {
var data = canvas.toDataURL('image/png'), dlg = null;
dlg = $dialogs.create('js/plugin/vzfeedbacktool.html', 'feedbackToolController', {
imgdata: data
}, {
key: false,
back: 'static'
});
dlg.result.then(function(name) {
$scope.name = name;
}, function() {
$scope.name = 'You decided not to enter in your name, that makes me sad.';
});
}
});
}; // end launch
});
feedbackModule.controller('feedbackToolController', ['$scope', '$modalInstance', function($scope, $modalInstance, data) {
$scope.cancel = function() {
$modalInstance.dismiss('canceled');
}; // end cancel
$scope.save = function() {
debugger;
var fbcanvas = $('#fbcanvas');
var ctx = fbcanvas.getContext('2d');
var image = new Image();
image.src = data.imgdata;
ctx.drawImage(image, 0, 0);
}; // end save
}]);
Any idea if I'm missing something? by the way, if I try to execute that code directly in the console it works fine :S
知道我是否遗漏了什么吗？顺便说一句，如果我尝试直接在控制台中执行该代码，它可以正常工作：S
Thanks
谢谢
采纳答案by Martin Zarate Rafael
Try this:
尝试这个：
var fbcanvas = document.getElementById('fbcanvas');
instead of:
代替：
var fbcanvas = $('#fbcanvas');
Check if data is undefinedtoo.
检查数据是否undefined也是。
