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NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
There is an issue with the Android appcompat v7 library on Samsung devices running Android 4.2. I keep getting crashes with the following stack trace in my Developer Console:
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How to get string width on Android?
... edited Oct 6 '16 at 22:03
Andrii Abramov
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answered Sep 2 '10 at 19:05
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MongoDB: How to query for records where field is null or not set?
...not set then:
db.emails.count({sent_at: {$exists: false}})
If its there and null, or not there at all:
db.emails.count({sent_at: null})
Refer here for querying and null
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From Arraylist to Array
... zero-length array is created, then the real-size array is created, filled and returned. So, if since you know the needed size (from list.size()) you should create array that is big enough to put all elements. In this case it is not re-allocated.
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
...e second [...] cannot be an array, so it’s an array subscript operation. And the contents of a subscript operation are not a delimited list of operands, but a single expression.
Read more about the comma operator here.
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Making a request to a RESTful API using python
... answered Jun 25 '13 at 19:55
andersschullerandersschuller
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Programmatically change log level in Log4j2
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Right and if you want to change for just a particular logger (of a class/ package) get the context of that logger, setLevel and updateLoggers.
– tgkprog
May 2 '14 at 20:21
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Partly JSON unmarshal into a map in Go
My websocket server will receive and unmarshal JSON data. This data will always be wrapped in an object with key/value pairs. The key-string will act as value identifier, telling the Go server what kind of value it is. By knowing what type of value, I can then proceed to JSON unmarshal the value int...
Extract numbers from a string
I want to extract the numbers from a string that contains numbers and letters like:
20 Answers
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Correct way to find max in an Array in Swift
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Note in Swift 3 these have been renamed to simply min() and max().
– jemmons
Jul 10 '16 at 14:55
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