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In mongoDb, how do you remove an array element by its index?

...he comments this approach is not atomic and can cause some race conditions if other clients read and/or write between the two operations. If we need the operation to be atomic, we could: Read the document from the database Update the document and remove the item in the array Replace the document i...
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How do you configure an OpenFileDialog to select folders?

...penFileOrFolder dialog that allows you to open either a folder or a file. If you set its AcceptFiles value to false, then it operates in only accept folder mode. You can download the source from GitHub here share ...
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How to configure socket connect timeout

...ll, null ); bool success = result.AsyncWaitHandle.WaitOne( 5000, true ); if ( socket.Connected ) { socket.EndConnect( result ); } else { // NOTE, MUST CLOSE THE SOCKET socket.Close(); throw new ApplicationException("Failed to connect server."); } //... ...
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Set NOW() as Default Value for datetime datatype?

...ialization.html http://optimize-this.blogspot.com/2012/04/datetime-default-now-finally-available.html Prior to 5.6.5, you need to use the TIMESTAMP data type, which automatically updates whenever the record is modified. Unfortunately, however, only one auto-updated TIMESTAMP field can exist per tab...
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Looping over arrays, printing both index and value

...pace separated list of words". You get the list of actual array keys, even if the individual keys contain whitespace. – glenn jackman Aug 21 '16 at 1:21 ...
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FFMPEG (libx264) “height not divisible by 2”

... I think it's a multi-pixel color format, that needs the image to be a specific size. Not sure why it matters compressed, though. – lahwran Oct 18 '15 at 23:20 7 ...
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How can I send an HTTP POST request to a server from Excel using VBA?

... Please don't use parentheses around parameters if you do not use the Sub's return value: VBA Syntax do not allow parentheses around Sub's parameters (they are needed for Functions, though), so these parentheses are actually arithmetic parentheses used to clarify operator ...
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How to get record created today by rails activerecord?

... Post.where(created_at: Time.zone.now.beginning_of_day..Time.zone.now.end_of_day) PS: This answer has been modified as answer by Harish Shetty was better than mine. As my answer is accepted one. I have updated this answer for community support ...
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adb shell command to make Android package uninstall dialog appear

... No, if your app contains an activated DevicePolicyManager, you will have to manually disable it first. – pcans Jun 24 '13 at 8:23 ...
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How can I get the current date and time in UTC or GMT in Java?

... tl;dr Instant.now() // Capture the current moment in UTC. Generate a String to represent that value: Instant.now().toString() 2016-09-13T23:30:52.123Z Details As the correct answer by Jon Skeet stated, a java.util.Date obje...