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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]
...
Guava has a method that does something similar called MoreObjects.firstNonNull(T,T).
Integer x = ...
int y = MoreObjects.firstNonNull(x, -1);
This is more helpful when you have something like
int y = firstNonNull(calculateNullableValue(), -1);
since it saves you fro...
What are JavaScript's builtin strings?
...ers 1.1, strings "1", and discovered one beautiful method of RegExp object called test(). Its name can be assembled from all available characters, e.g. "t" and "e" from true, and "s" from false. I have created a string "test" and addressed this method using square brackets notation for regex literal...
Why is there no SortedList in Java?
...ents in the internal order of the list (aka. insertion order). More specifically it is in the order you've inserted the elements or on how you've manipulated the list. Sorting can be seen as a manipulation of the data structure, and there are several ways to sort the list.
I'll order the ways in th...
TypeScript, Looping through a dictionary
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It's better to not call the hasOwnProperty check from the target object, instead do this: ...if (Object.prototype.hasOwnProperty.call(myDictionary, key))... Else, if you are using eslint with no-prototype-builtins rule, it will emit an error.
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Convert Pixels to Points
...nch of your display in Windows using GetDeviceCaps. Microsoft has a guide called "Developing DPI-Aware Applications", look for the section "Creating DPI-Aware Fonts".
The W3C has defined the pixel measurement px as exactly 1/96th of 1in regardless of the actual resolution of your display, so the a...
Unit Testing C Code [closed]
...e process (to make debugging easier). A test runner which discover automatically the test functions is available. But you can create your own programmatically.
All those features (and more) are explained in the CGreen manual.
Wikipedia gives a detailed list of C unit testing frameworks under List of...
Using Server.MapPath in external C# Classes in ASP.NET
...path)
{
\\...... do whatever you wabt
}
else
{
\\.....
}
}
Now when you call the method from the codebehind
for example :
protected void BtAtualizacao_Click(object sender, EventArgs e)
{
string path = Server.MapPath("Folder") + "\\anifile.txt";
test.useServerPa...
Where to get “UTF-8” string literal in Java?
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You don't really need to call name() at all. You can directly pass the Charset object into the InputStreamReader constructor.
– Natix
Nov 19 '14 at 10:33
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
...you run the risk of a null reference exception in approach 1) since you're calling trim on a string that may be null
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Searching if value exists in a list of objects using Linq
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@stom: They're both O(N), basically... they're just linear searches.
– Jon Skeet
Mar 6 '16 at 12:09
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