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How do I test a file upload in rails?
... upload a user's avatar image" do
image = fixture_path + "/test_avatar.png"
file = ActionController::TestUploadedFile.new image, "image/png"
post :create, :user => { :avatar => file }
User.last.avatar.original_filename.should == "test_avatar.png"
end
end
This spec would req...
Why do my list item bullets overlap floating elements
...ap) but without hiding content behind it. Much like a table does :-)
.img {
float: left;
}
.table {
display: table;
}
<img class="img" src="https://via.placeholder.com/350x350" alt="">
<ul>
<li>Test content</li>
<li>Test content</li>
<...
Android: Share plain text using intent (to all messaging apps)
... ShareCompat.IntentBuilder.from(activity)
* .setType("image/png")
* .setStream(uriToImage)
* .getIntent();
*/
.setEmailTo(arrayOfStringEmailAddresses)
.setEmailTo(singleStringEmailAddress)
/*
* [OPTIONAL] Designat...
访问图像和声音 · App Inventor 2 中文网
...任何特殊前缀的文件名。 例如，如果你有一个名为 kitty.png 的图像资源，则可以将其用作图像：只需将图像组件的“Picture”属性设置为文本 kitty.png。 你可以类似地使用声音（声音或播放器）或视频（视频播放器）的文件名。
...
转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...算是对过去的一段总结，对未来的一份期许，我因技术而入门，因产品而出门。
我理解的产品
说起产品，或者说互联网产品，我第一次明确的知道这个概念的含义应该是在2011年，那一年智能手机开始兴起，印象很深刻，那...
How to check file input size with jQuery?
...('#formid').validate({
rules: { inputimage: { required: true, accept: "png|jpe?g|gif", filesize: 1048576 }},
messages: { inputimage: "File must be JPG, GIF or PNG, less than 1MB" }
});
share
|
...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...= 600;
CreateMatrix(w, h, rand.NextDouble).Save("System.Random.png", ImageFormat.Png);
CreateMatrix(w, h, qrand.Random).Save("QuickRandom.png", ImageFormat.Png);
}
private static Image CreateMatrix(int width, int height, Func<double> f)
{
...
PHP编译安装时常见错误解决办法，php编译常见错误 - 更多技术 - 清泛网 - ...
...ot found.
代码如下:
yum -y install libXpm-devel
configure: error: png.h not found.
代码如下:
yum -y install libpng-devel
configure: error: vpx_codec.h not found.
代码如下:
yum -y install libvpx-devel
configure: error: Cannot find enchant
代码如下:
yum -y install ench...
S3 - Access-Control-Allow-Origin Header
...
Anyone knows how can I change headers of an img tag? I can't send different headers, the browser sends the request
– idan
Nov 13 '18 at 10:53
1
...
What's the best way to cancel event propagation between nested ng-click calls?
...ontroller="OverlayCtrl" class="overlay" ng-click="hideOverlay()">
<img src="http://some_src" ng-click="nextImage($event)"/>
</div>
$scope.nextImage = function($event) {
$event.stopPropagation();
// Some code to find and display the next image
}
...