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How to check for an undefined or null variable in JavaScript?
... about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
value = obj.prop || defaultValue
which means "if obj has the property prop, assign it to value, otherwise assign the default value defautValue".
Some people consider this behavior confusing, arguing th...
Array initializing in Scala
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How to delete or add column in SQLITE?
I want to delete or add column in sqlite database
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Obtain Bundle Identifier programmatically
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How to get jQuery dropdown value onchange event
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Will Dispose() be called in a using statement with a null object?
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Is == in PHP a case-sensitive string comparison?
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Running two projects at once in Visual Studio
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CSS: how to position element in lower right?
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E11000 duplicate key error index in mongodb mongoose
...the moment). Removing a field from a Mongoose model doesn't affect the database. Check with mydb.users.getIndexes() if this is the case and manually remove the unwanted index with mydb.users.dropIndex(<name>).
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