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Query for array elements inside JSON type
... its elements:
WITH reports(data) AS (
VALUES ('{"objects":[{"src":"foo.png"}, {"src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#>'{objects}') obj
WHERE obj->>'src' = 'foo.png';
The CTE (WITH query) just su...
How to write a caption under an image?
...">
<a href="http://xyz.com/hello">
<img src="hello.png" width="100px" height="100px">
<div class="caption">Caption 1</div>
</a>
<a href="http://xyz.com/hi">
<img src="hi.png" width="100px" height="100px">
<d...
设备选择器（DevicePicker）使用指导 · App Inventor 2 中文网
...系统设备面板→真实设备选择→读取networkId／名称→回报测试业务状态→释放并再次显示。需要系统实际发现的支持协同设备，不能用虚构设备替代。状态回报不执行硬件指令、投屏或应用流转；下一步把实际networkId交给对应的...
CSS image resize percentage of itself?
...ntered in middle of original size.
html:
<img class="fake" src="example.png" />
css:
img {
-webkit-transform: scale(0.5); /* Saf3.1+, Chrome */
-moz-transform: scale(0.5); /* FF3.5+ */
-ms-transform: scale(0.5); /* IE9 */
-o-transform: scale(0.5); /* Opera 10.5+ */
...
Switching a DIV background image with jQuery
...ere is how I do it:
CSS
#button{
background-image: url("initial_image.png");
}
#button.toggled{
background-image:url("toggled_image.png");
}
JS
$('#button').click(function(){
$('#my_content').toggle();
$(this).toggleClass('toggled');
});
...
Can I change the height of an image in CSS :before/:after pseudo-elements?
...e block, however.
.pdflink:after {
background-image: url('/images/pdf.png');
background-size: 10px 20px;
display: inline-block;
width: 10px;
height: 20px;
content:"";
}
See the full Compatibility Table at the MDN.
...
Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
...Element('link');
newLink.rel = 'shortcut icon';
newLink.href = 'data:image/png;base64,'+favIcon;
docHead.appendChild(newLink);
/* Other JS would normally be in here too. */
Demo: turi.co/up/favicon.html
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Open file dialog and select a file using WPF controls and C#
...tton1 I want to browse my files to search only for image files (type jpg, png, bmp...).
And when I select an image file and click Ok in the file dialog I want the file directory to be written in the textbox1.text like this:
...
Automatic Retina images for web sites
...
<img src="LaunchAirportIcon.png" srcset="LaunchAirportIcon@2x.png 2x">
– malhal
Jul 28 '15 at 15:15
7
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Setting the filter to an OpenFileDialog to allow the typical image formats?
I have this code, how can I allow it to accept all typical image formats? PNG, JPEG, JPG, GIF?
11 Answers
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