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Delete a key from a MongoDB document using Mongoose
...e action in question by this:
User.collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.s...
Git asks for username every time I push
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@testerjoe2 try git config --unset credential.helper
– dk14
Oct 22 '16 at 7:19
1
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Dynamically load JS inside JS [duplicate]
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make sure to set the src attribute after the onload attribute source
– woojoo666
Apr 30 '16 at 0:04
14
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Should I use #define, enum or const?
...or systems) due to the fact that most machines cannot manipulate arbitrary sets of bits in memory, but must instead load and store whole words. e.g the following would not be thread-safe, in spite of the use of a mutex
Source: http://en.wikipedia.org/wiki/Bit_field:
And if you need more reasons to...
Deserialize JSON to ArrayList using Jackson
...nly int and String instance variables combined with proper getters and setters. MyPojoDeMixIn looks something like this:
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How to programmatically close a JFrame
...w to programmatically close a JFrame" - If the JFrame.EXIT_ON_CLOSE is not set, it will not close. Anyway, I was just pointing out that it might be needed to add to the answer, since jframe.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); won't actually close it by triggering this even...
Regex to match only letters
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Use a character set: [a-zA-Z] matches one letter from A–Z in lowercase and uppercase. [a-zA-Z]+ matches one or more letters and ^[a-zA-Z]+$ matches only strings that consist of one or more letters only (^ and $ mark the begin and end of a ...
Does “\d” in regex mean a digit?
... highlight contiguous matches with different colors, but due to the plugin settings, terminal limitations or for some other reason, only every other group might be highlighted in your case.
share
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Compare floats in php
...uperior to your solution. In this example, the 2 is the precision. you can set it to whatever number of floating points you want to compare.
– John Miller
Feb 7 at 7:07
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How to hide underbar in EditText
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You can set the EditText to have a custom transparent drawable or just use
android:background="@android:color/transparent"
or
android:background="@null"
or Programmatically
editText.setBackgroundResource(android.R.color.trans...