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问题 this problem appears only in joomla - im trying to use the contentflow plugin with my joomla site this is the plugin site - http://www.jacksasylum.eu/ContentFlow/ this is my site - http://2-dweb.com/RND/ as you can see it doesnt work - it just stays on the loading phase forever upon closer inspection i can see that there is a problem with this code: if (this.content.nodeName == "IMG") { CFobj._imagesToLoad++; var foobar = function () { CFobj._imagesToLoad--; this.image = this.content; this

问题 this problem appears only in joomla - im trying to use the contentflow plugin with my joomla site this is the plugin site - http://www.jacksasylum.eu/ContentFlow/ this is my site - http://2-dweb.com/RND/ as you can see it doesnt work - it just stays on the loading phase forever upon closer inspection i can see that there is a problem with this code: if (this.content.nodeName == "IMG") { CFobj._imagesToLoad++; var foobar = function () { CFobj._imagesToLoad--; this.image = this.content; this

问题 In my main file I have a surface called win . I import a module like so from draw import * . def draw(image,x,y): win.blit(image,(x,y)) This is a function from draw . It doesn't work because win is not defined. How to make it defined? 回答1: Add an additional parameter for the target surface to the function: def draw(target, image, x, y): target.blit(image, (x, y)) Pass win to the draw function: draw(win, image, x, y) Alternatively, you can create a variable in the module's global namespace:

问题 In my main file I have a surface called win . I import a module like so from draw import * . def draw(image,x,y): win.blit(image,(x,y)) This is a function from draw . It doesn't work because win is not defined. How to make it defined? 回答1: Add an additional parameter for the target surface to the function: def draw(target, image, x, y): target.blit(image, (x, y)) Pass win to the draw function: draw(win, image, x, y) Alternatively, you can create a variable in the module's global namespace:

问题 I don't find an answer in the replies to this kind of question already been asked. I don't understand, why console throws this error " TypeError: Cannot read property 'length' of undefined" , when my for-Loop contains this condition for (let i = 0; i <= res.length; i++) { arr.push(res[i].length); } Without equal sign it works. I don't get why. I thought setting i=1 would work. But it does not. Could anyone explain please, why I get the error when given the condition i>**=**res.length; (with

问题 BACKGROUND: Hello, i am newbie to react and currently building an application which has datatables . PROBLEM: It runs on the local machine(pc) perfectly but when i use the same code in codesandbox then i get TypeError: this.$el.DataTable is not a function. I have tried using datatable & jquery cdns inside the index.html file but it doesn't have any effect. Any hint ,suggestion would be helpful, thanks in advance. CODE : https://codesandbox.io/embed/jjwx6n2r93 回答1: There were two issues in

问题 Here's a sample that demonstrates an array that as you fill it in, it gets all types of undefined entries in it as well. This is on firefox 19.0/firebug, not sure if it happens on other browsers. Basic flow: Object is initialized (very bottom) It calls "load" When the ajax returns in load, data.objects contains an array of json objects. This array has no undefined entries on it. setObjects gets called where all the objects from the ajax call are copied to this.objects. As they are copied I

问题 Here's a sample that demonstrates an array that as you fill it in, it gets all types of undefined entries in it as well. This is on firefox 19.0/firebug, not sure if it happens on other browsers. Basic flow: Object is initialized (very bottom) It calls "load" When the ajax returns in load, data.objects contains an array of json objects. This array has no undefined entries on it. setObjects gets called where all the objects from the ajax call are copied to this.objects. As they are copied I

问题 I'm curious to know if the following behaviour in PHP is intended or not. And, if it is intended, it is considered acceptable to initialize an array from a null variable by creating an index into it (as is done in the first code snippet)? error_reporting(E_ALL); $arr = null; echo ($arr["blah"]===null) ? "null" : $arr["blah"]; $arr["blah"] = "somevalue"; echo "<br>"; echo ($arr["blah"]===null) ? "null" : $arr["blah"]; var_dump ($arr); This outputs null somevalue array (size=1) 'blah' => string

问题 I took my HTML website and turned it into a PHP site. I'm in the testing phase currently however, I keep getting "Notices" on the rendered page instead of content. I've tried turning the constants to variables with $, but the notice still appears. However, it changed from undefined constant to undefined variable. I changed them back to constants. I'm on a WinXP 32-bit, therefore, I use Xammp 1.8.2 with PHP 5.4.31 the array in question: $navItems = array( array( slug => "index.php", title =>