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How to position a DIV in a specific coordinates?

...espectively. It must have position: absolute; var d = document.getElementById('yourDivId'); d.style.position = "absolute"; d.style.left = x_pos+'px'; d.style.top = y_pos+'px'; Or do it as a function so you can attach it to an event like onmousedown function placeDiv(x_pos, y_pos) { var d = do...
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jQuery if checkbox is checked

... Code confirmed by jQuery doc, "the cross-browser-compatible way to determine if a checkbox is checked is to use the property: if ( elem.checked ) or if ( $( elem ).prop( "checked" ) ) or if ( $( elem ).is( ":checked" ) ) ". see api.jquery.c...
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select and update database record with a single queryset

...el.objects.get(pk=some_value) q.field1 = 'some value' q.save() 3rd method By using get_object_or_404 q = get_object_or_404(MyModel,pk=some_value) q.field1 = 'some value' q.save() 4th Method if you required if pk=some_value exist then update it other wise create new one by using update_or_create. M...
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How to scroll to an element inside a div?

... parent (the scrolling div container): var myElement = document.getElementById('element_within_div'); var topPos = myElement.offsetTop; The variable topPos is now set to the distance between the top of the scrolling div and the element you wish to have visible (in pixels). Now we tell the div to...
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How to detect DIV's dimension changed?

...posite: It smooths down all those extreme numbers of events that are fired by the real event based resize sensor to save cpu time. See updated docs at github.com/marcj/css-element-queries/blob/master/src/… – Marc J. Schmidt Mar 17 '16 at 17:41 ...
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HTML: How to limit file upload to be only images?

... HTML5 File input has accept attribute and also multiple attribute. By using multiple attribute you can upload multiple images in an instance. <input type="file" multiple accept='image/*'> You can also limit multiple mime types. <input type="file" multiple accept='image/*|audio/*...
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Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.

... imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
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DBMS_OUTPUT.PUT_LINE not printing

... What is "it" in the statement "it just says the procedure is completed"? By default, most tools do not configure a buffer for dbms_output to write to and do not attempt to read from that buffer after code executes. Most tools, on the other hand, have the ability to do so. In SQL*Plus, you'd need...
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How to unbind a listener that is calling event.preventDefault() (using jQuery)?

jquery toggle calls preventDefault() by default, so the defaults don't work. you can't click a checkbox, you cant click a link etc etc ...
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How to hide one item in an Android Spinner

... It's easier to hide an item at the end of the list by truncating the list. But you have to select it first so it appears in the spinner, and then check if the selection has been changed to one of the items displayed. List<String> list = new ArrayList<String>(); ...