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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
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there's no point in having a private default constructor if you have declared a custom one. also, in this case there is literally nothing to be gained from using a static "constructor" instead of just doing the validation in the real constructor (since it's part of t...
Count the number of occurrences of a string in a VARCHAR field?
...alue", "") )
) / LENGTH("value")
) AS count
FROM <table>
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Merge git repo into branch of another repo
... files changed, added or removed).
Make a new branch:
git checkout -b <my-branch>
Add the secondary remote, then fetch it:
git remote add <repo-name> git@github.com:xxx/<repo-name>.git
git remote update
Merge one of their branches in your current branch:
git merge <repo...
Select2 dropdown but allow new values by user?
...erm, page:page };
},
dataType:"json",
quietMillis:100,
results: function (data, page) {
return {results: data.results};
},
"url": url
},
id: function(object) {
return object.text;
},
//Allow manually entered text in drop down.
createSearchChoice:function(t...
Why are there two kinds of functions in Elixir?
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x = 1
fun = fn y -> x + y end
fun.(2) #=> 3
A function can have multiple clauses too:
x = 1
fun = fn
y when y < 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different clauses expecting a different number...
How to disable GCC warnings for a few lines of code
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#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-result"
write(foo, bar, baz);
#pragma GCC diagnostic pop
You can check the GCC documentation on diagnostic pragmas for more details.
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How to resolve “Waiting for Debugger” message?
...he android.permission.SET_DEBUG_APP permission set in its manifest file:
<manifest>
<uses-permission android:name="android.permission.SET_DEBUG_APP"></uses-permission>
</manifest>
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java: ArrayList - how can i check if an index exists?
I'm using ArrayList<String> and I add data at specific indices,
how can I check if a specific index exists?
11 Ans...
Ensure that HttpConfiguration.EnsureInitialized()
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That's exactly what GlobalConfiguration.Configure(Action<HttpConfiguration> configurationCallback) will call after the configurationCallback.
– cmxl
Jun 1 '17 at 12:36
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How to output loop.counter in python jinja template?
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if you are using django use forloop.counter instead of loop.counter
<ul>
{% for user in userlist %}
<li>
{{ user }} {{forloop.counter}}
</li>
{% if forloop.counter == 1 %}
This is the First user
{% endif %}
{% endfor %}
</ul>
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