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Type Checking: typeof, GetType, or is?
...is basically a whole bunch of methods with the appropriate type. Example:
string Foo<T>(T parameter) { return typeof(T).Name; }
Animal probably_a_dog = new Dog();
Dog definitely_a_dog = new Dog();
Foo(probably_a_dog); // this calls Foo<Animal> and returns "Animal"
Foo<Animal>...
Count number of lines in a git repository
... diff --shortstat `git hash-object -t tree /dev/null`
It will give you a string like 1770 files changed, 166776 insertions(+).
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Why is the use of alloca() not considered good practice?
...pers when I couldn't fix it), it wasn't straight alloca, it was one of ATL string conversion macros.
So the lesson is - do not use alloca in functions that you think might be inlined.
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What exactly are unmanaged resources?
...an I relate an object as managed/un-managed just by the type, for example, string is managed, DataSet is un-managed (which is why it has a Dispose() method), Database connections are un-managed (because they have dispose), etc. So is the assumption, if it has a "Dispose()" method, then it's un-manag...
How to include a child object's child object in Entity Framework 5
...rload of the Include() method which takes a lambda expression instead of a string. You can then Select() over children with Linq expressions rather than string paths.
return DatabaseContext.Applications
.Include(a => a.Children.Select(c => c.ChildRelationshipType));
...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...to use before inserting with Django to avoid the np.nan being converted to string "nan"
– shadi
May 11 '18 at 8:04
Use...
How to fight tons of unresolved variables warning in Webstorm?
...
Use JSDoc:
/**
* @param {{some_unres_var:string}} data
*/
function getData(data){
console.log(data.some_unres_var);
}
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TypeError: unhashable type: 'dict'
...e the keys have to be hashable. As a general rule, only immutable objects (strings, integers, floats, frozensets, tuples of immutables) are hashable (though exceptions are possible). So this does not work:
>>> dict_key = {"a": "b"}
>>> some_dict[dict_key] = True
Traceback (most re...
Is there a naming convention for MySQL?
...work that you might want to carry out. For example you might just want to call an index foo_bar_idx1 or foo_idx1 - totally up to you but worth considering.
Singular vs Plural Column Names
It might be a good idea to address the thorny issue of plural vs single in your column names as well as your t...
What is meant by 'first class object'?
...case of JavaScript, it means that everything you can do with an Integer, a String, an Array or any other kind of Object, you can also do with functions.
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