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What is the best way to test for an empty string in Go?
...t that little extra bit of work. HOWEVER, one thing we used to do in C was cast the left side to a const or put the static string on the left side of the operator to prevent s=="" from becoming s="" which in the C syntax is acceptable... and probably golang too. (see the extended if)
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Counting the occurrences / frequency of array elements
... wider usage. Storing the values as object keys to count them means you're casting those values to strings and then counting that value. [5, "5"] will simply say you've got "5" two times. Or counting instances some different objects is just gonna tell you there's a lot of [object Object]. Etc. etc.
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What is the main purpose of setTag() getTag() methods of View?
...are not descriptive at all.
It just stores an Object, which requires to be cast when you want to getTag. You can get unexpected crashes later when you decide to change the type of stored object in the tag.
Here's a real-life story: We had a pretty big project with a lot of adapters, async operations...
Converting String to Int with Swift
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@aremvee do you mean "cast" an integer as a string? And what exactly does this do that answers the question which the other answers don't?
– Alex Hall
Jul 3 '17 at 21:46
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How do I get the difference between two Dates in JavaScript?
...are Date instances. Calling operators + and - will trigger Javascript auto casting and will automatically call the valueOf() prototype method of those objects. It happens that the valueOf() method is implemented in the Date object as a call to getTime().
So basically: date.getTime() === date.valueO...
Read-only list or unmodifiable list in .NET 4.0
... If you expose your List as an IEnumerable, then the consumer could simply cast it back to List and modify it.
– JulianR
Jun 11 '09 at 22:36
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How to import load a .sql or .csv file into SQLite?
...o-create the table for you as well as do some basic type-guessing and data casting for you (so e.g. it will work out something is a number and set the column type to "real").
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Gridview height gets cut
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for below android os 5.0 i get this error java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
– silverFoxA
Jun 6 '15 at 4:57
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...erting.
INSERT INTO my_profile (Address) VALUES ('123 Fake St.');
SELECT CAST(scope_identity() AS int)
ExecuteReader gives you a data reader
back which will allow you to read all
of the columns of the results a row
at a time.
An example would be pulling profile information for one or more users...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
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It does work in Python 3, but you have to cast the dict_items objects to real list objects. This is another case where Python 3 prioritised minor performance optimisations over simplicity and ease of use.
– Carl Smith
Apr 12 '17...