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Using NSPredicate to filter an NSArray based on NSDictionary keys
...he iPhone? It works great on the sim but running it on the iPhone gives an error that the NSPredicate class could not be found.
– lostInTransit
Sep 25 '09 at 4:28
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Get the data received in a Flask request
...content type is not correct, None is returned. If the data is not JSON, an error is raised.
@app.route("/something", methods=["POST"])
def do_something():
data = request.get_json()
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How to get all count of mongoose model?
...d'});
anand.save(function (err, docs) {
if (err) {
console.log('Error');
} else {
userModel.countDocuments({name: 'anand'}, function(err, c) {
console.log('Count is ' + c);
});
}
});
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MySQL Error 1215: Cannot add foreign key constraint
...new schema onto my db server, but I can't figure out why I am getting this error. I've tried to search for the answer here, but everything I've found has said to either set the db engine to Innodb or to make sure the keys I'm trying to use as a foreign key are primary keys in their own tables. I h...
Why does i = i + i give me 0?
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230 + 230 = -231
-231 + -231 = 0
...in int arithmetic, since it's essentially arithmetic mod 2^32.
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Where to put include statements, header or source?
... if I include that header file in my source, then will my source file have all of the included files that were in my header? Or should I just include them in my source file only?
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Join/Where with LINQ and Lambda
...uble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code:
9 Answers
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Insert an element at a specific index in a list and return the updated list
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l.insert(index, obj) doesn't actually return anything. It just updates the list.
As ATO said, you can do b = a[:index] + [obj] + a[index:].
However, another way is:
a = [1, 2, 4]
b = a[:]
b.insert(2, 3)
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Conversion failed when converting date and/or time from character string while inserting datetime
...' (note 'Z' - Zulu time at the end to denote UTC timestamp). I've got this error while trying to insert '2013-12-16T17:21:26Z' in datetime field. Just to clarify, ISO 8601 is supported partially. It does not support Zulu time, despite it being mentioned in the documentation. It's probably some set...
Converting a view to Bitmap without displaying it in Android?
... This will not work if the view is not presented in the layout. Error: "IllegalStateException: View needs to be laid out before calling drawToBitmap()"
– Val
Apr 20 at 5:55
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