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قناة منصة معارف علي التليجرام الاقوي عربيا .. اشترك الآن

شرح [ jQuery In Arabic ] #30 - Events Reference - PreventDefault | [معتمد]

دورة تصميم المواقع بإستخدام jQuery

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مفهوم – نتعرف اليوم بشكل مُبسط على الـ جي كويري jQuery، هو إطار عمل للبرمجة بالجافا سكريبت JavaScript متعددة المنصات تم تصميمه لتسهيل عملية كتابة أكواد الـ JavaScript في المواقع، حيث يقوم الـ جي كويري JQuery بأخذ العديد من المهام التي تتطلب كتابتها العديد من السطور الخاصة بأكواد الـ JavaScript لتنفيذها وتقوم بتغليفها إلي أساليب يمكن استدعائها بواسطة سطر واحد من الكود وتقوم أيضا بتبسيط العديد من الأشياء المعقدة في الـ JavaScript . الـ جي كويري jQuery برمجية حرة مفتوحة المصدر مرخصة تحت رخصتي إم آي تي وجي بي إل، ويمكن القول أنها مكتبة مصغرة لتسهيل التعقيد الموجود في كتابة الجافا سكربت، تم تدشينها رسمياً في يناير 2006. تتميز مكتبة الـ جي كويري JQuery بانها مكتوبة فقط بلغة الـ JavaScript وحجمها صغير جدا و أنها مفتوحة المصدر و قادرة علي العمل مع المكتبات الأخري وعمل التأثيرات الحركية علي مواقع الويب و تقوم بتوفير كم هائل من الإضافات التي تعمل بالإعتماد عليها.
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Request history8.1.2PHP Version272msRequest Duration4MBMemory UsageGET lesson/{lesson_id}Route
    • Booting (188ms)time
    • Application (84.21ms)time
    • 1 x Booting (69.02%)
      188ms
      1 x Application (30.98%)
      84.21ms
      29 templates were rendered
      • courses.lessonlesson.blade.php#?blade
      • ads.lesson_top_fixed_boxlesson_top_fixed_box.blade.php#?blade
      • ads.lesson_after_buttonlesson_after_button.blade.php#?blade
      • inc.share_boxshare_box.blade.php#?blade
      • pages.telegram_boxtelegram_box.blade.php#?blade
      • inc.review_formreview_form.blade.php#?blade
      • ajax.review_userreview_user.blade.php#?blade
      • ads.lesson_bottomlesson_bottom.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.partials.home.sections.courses.coursecourse.blade.php#?blade
      • beta.layouts.mainmain.blade.php#?blade
      • beta.layouts.partials.notifications_modalnotifications_modal.blade.php#?blade
      • beta.layouts.partials.navbarnavbar.blade.php#?blade
      • beta.layouts.partials.menumenu.blade.php#?blade
      • beta.layouts.partials.student-menustudent-menu.blade.php#?blade
      • beta.layouts.partials.search-input-desktopsearch-input-desktop.blade.php#?blade
      • student.login_Adminlogin_Admin.blade.php#?blade
      • beta.layouts.partials.search-modalsearch-modal.blade.php#?blade
      • beta.layouts.partials.search-input-mobilesearch-input-mobile.blade.php#?blade
      • beta.layouts.partials.mobile-navbarmobile-navbar.blade.php#?blade
      • beta.layouts.partials.mobile-sidebarmobile-sidebar.blade.php#?blade
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      • inc.messagesmessages.blade.php#?blade
      • beta.layouts.partials.footerfooter.blade.php#?blade
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      namespace
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      app/Http/Controllers/courseCerController.php:227-322
      11 statements were executed24.98ms
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        170μsstagingLinkMap.php#20
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        • 17. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
        • 19. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
        • 20. app/Http/Middleware/LoginUsersFromApp.php:30
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        200μsstagingcourseCerController.php#230
        Bindings
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        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:230
        • 17. vendor/laravel/framework/src/Illuminate/Cache/Repository.php:396
        • 18. vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php:429
        • 20. app/Http/Controllers/courseCerController.php:231
        • 21. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • select count(*) as aggregate from `lessons` where `course_id` = 27 and `lessons`.`deleted_at` is null
        280μsstagingcourseCerController.php#241
        Bindings
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        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:241
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
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        230μsstagingcourseCerController.php#241
        Bindings
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        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:241
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `course` where `id` = 27 and `course`.`deleted_at` is null limit 1
        250μsstagingcourseCerController.php#243
        Bindings
        • 0: 27
        Backtrace
        • 17. app/Http/Controllers/courseCerController.php:243
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 21. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `course`.*, (select count(*) from `lessons` where `course`.`id` = `lessons`.`course_id` and `lessons`.`deleted_at` is null) as `lessons_count` from `course` where `cat_id` = 49 and `is_certified` = 1 and `course`.`deleted_at` is null limit 8
        22.79msstagingcourseCerController.php#245
        Bindings
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        Backtrace
        • 15. app/Http/Controllers/courseCerController.php:245
        • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select `id`, `title`, `slug`, `cer_title` from `courses` where `id` = 49 and `courses`.`deleted_at` is null limit 1
        210μsstagingcourseCerController.php#247
        Bindings
        • 0: 49
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:247
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `community` where `course_id` = 27 and `community`.`deleted_at` is null limit 1
        200μsstagingcourseCerController.php#248
        Bindings
        • 0: 27
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:248
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select max(`id`) as aggregate from `lessons` where `id` < '421' and `course_id` = 27 and `lessons`.`deleted_at` is null
        260μsstagingcourseCerController.php#299
        Bindings
        • 0: 421
        • 1: 27
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:299
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select min(`id`) as aggregate from `lessons` where `id` > '421' and `course_id` = 27 and `lessons`.`deleted_at` is null
        220μsstagingcourseCerController.php#300
        Bindings
        • 0: 421
        • 1: 27
        Backtrace
        • 16. app/Http/Controllers/courseCerController.php:300
        • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
        • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `course_reviews` where `course_id` = 27 limit 1
        170μsstaginghelper.php#420
        Bindings
        • 0: 27
        Backtrace
        • 16. app/helpers/helper.php:420
        • 18. vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php:429
        • 20. app/helpers/helper.php:421
        • 23. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
        • 24. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
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      App\course
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      App\courses
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