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How do you query for “is not null” in Mongo?
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This will return all documents with a key called "IMAGE URL", but they may still have a null value.
db.mycollection.find({"IMAGE URL":{$exists:true}});
This will return all documents with both a key called "IMAGE URL" and a non-null value.
db.mycollection.find({"IMAGE URL":{$ne:n...
How to checkout a specific Subversion revision from the command line?
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Either
svn checkout url://repository/path@1234
or
svn checkout -r 1234 url://repository/path
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Git in Visual Studio - add existing project?
...ed in your Team Foundation Server account git remote add origin <proper URL>
git push your code
Alternatively, there are detailed guides here using the Visual Studio integration.
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imp...
angular.service vs angular.factory
...pp.factory('myFactory', function($http, $q){
var service = {};
var baseUrl = 'https://itunes.apple.com/search?term=';
var _artist = '';
var _finalUrl = '';
var makeUrl = function(){
_artist = _artist.split(' ').join('+');
_finalUrl = baseUrl + _artist + '&callback=JSON_CALLBACK...
Mix Razor and Javascript code
...cripts")
}
Scripts.cshtml
<script type="text/javascript">
var url = "@Url.Action("Index", "Home")";
$(document).ready(function() {
$("#btnLoad").click(function() {
$.ajax({
type: "POST",
url: url ,
data: {someParam...
How do I contribute to other's code in GitHub? [closed]
...a GitHub web interface: "Fork" button)
In your forked repository, copy the URL
Clone (in the command line)
git clone <url-from-your-workspace>
Enter the directory, that just got created, and create a branch
cd <directory>
git checkout -b <branchname>
Now make your changes
You can...
How do you connect localhost in the Android emulator? [duplicate]
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Thanks, @lampShaded for your answer.
In your API/URL directly use http://10.0.2.2:[your port]/ and under emulator setting add the proxy address as 10.0.2.2 with the port number. For more, you can visit: https://developer.android.com/studio/run/emulator-networking.html
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How do I view the SQLite database on an Android device? [duplicate]
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After entering the inspect url, I wasn't easily seeing how to access the DB. This is how - after loading the url when your app is already running, there will be a url/link with text inspect on the loaded page for the App. Click that link .. then to a...
how to set textbox value in jquery
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I think you want to set the response of the call to the URL 'compz.php?prodid=' + x + '&qbuys=' + y as value of the textbox right? If so, you have to do something like:
$.get('compz.php?prodid=' + x + '&qbuys=' + y, function(data) {
$('#subtotal').val(data);
});
Ref...
用户界面（UI）组件 · App Inventor 2 中文网
...是否是可见的。
侧边栏教程网址
设置侧边栏中文教程URL地址。
版本编号
每次为应用商店创建新的 Android 应用程序包文件(APK)时都必须递增的整数值。
版本名称
可以更改的字符串，以允许应用商店用户区分不同版本的...