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Facebook has this feature where we can drag an image and then we can drag drop and reorder the image.
How to do so?
How to achieve that?
Is that a library for that kind of control on the web? Should we code the javascript ourselves?
For drag and drop file uploading I've used https://github.com/blueimp/jQuery-File-Upload in the past. It is complicated but works well.
For dragging and dropping to reorder elements you can either try to implement it yourself or use something like http://jqueryui.com/sortable/.
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Does anyone have a simple solution to extract frames from a gif using javascript?
I know some online tools like Ezgif and Gif-explode, but I'm wondering if this is also possible using just javascript?
For a client-side solution I'd recommend to have a look at libgif-js.
It allows to step to a specific frame in the GIF and you could then use the Canvas API to capture a single frame by drawing the image to the canvas and then getting the Data URL.
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I wasn't sure if this question has already been asked before but I was wondering how you produce the interactive dotted text and the running tiger animation you see in the middle of the run4tiger website?
http://run4tiger.com/
Any information would be appreciated.
They are using canvas elements to achieve this.
The canvas will catch the mouse over events and then react accordingly.
The loading tiger screen was drawn using SVG.
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I want to make app like canva but i dont know where to start, i have good experience in html and css but a basic javascript.
I need to know what they use.
How to save html data to image like canva functions.
How they save the data and load it again.
I already try Html2canvas but problem in images limit.
You should use Javascript canvas libraries like Fabricjs
but i don't think that basic knowledge of javascript would be enough for such app you will have to improve your javascript skills to an at least intermediate level.
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I like the revolution slider, but how can I edit the slides in an UI like in WordPress, but without using WordPress, magento?
I want to get the jQuery code only.
Is that possible? Maybe with another slider?
Yes. Now they have: Slider Revolution Jquery Visual Editor Addon
There is no way to do this at the moment.
I am working currently to make it available without wordperss but it is hard work.
Let me know if you will find other solution.
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I want to put a sprite image in my website, and use javascript to crop it to many separate images, then put these images into an image array.
Is this possible? Thanks.
Take a look at jCrop, if you're using jQuery or JavaScript Image Cropper UI if you're using prototype.
What server-side language are you using? If you just want a straight crop w/o the graphical interface it might be better to do it server side.
If you're using PHP, check out this tutorial on nettuts
If you're using Ruby on Rails, check out Paperclip