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How to check if a map contains a key in Go?
...ng here
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Explanation:
if statements in Go can include both a condition and an initialization statement. The example above uses both:
initializes two variables - val will receive either the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool ...
ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...ler called Error with action methods HTTPError404() , HTTPError500() , and General() . They all accept a string parameter error . Using or modifying the code below.
What is the best/proper way to pass the data to the Error controller for processing? I would like to have a solution as robust a...
How To: Best way to draw table in console app (C#)
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If you don't need table edges and corners, this works well. Don't forget to use the PadRight(x) or PadLeft(x) to help you with your spacing. For what I needed, I just needed something easy to read, and after removing the |s this did the trick.
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Check if a row exists, otherwise insert
...erbook a flight, as it will insert a new row when there are 10 tickets max and you are booking 20.
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IllegalMonitorStateException on wait() call
...ency packages instead of the old school threading packages. They are safer and way easier to work with.
Happy coding.
EDIT
I assumed you meant Object.wait() as your exception is what happens when you try to gain access without holding the objects lock.
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The easiest way to transform collection to array?
...t a size 0 array, it will make a new array, meaning you have a small array and a large array being made when such is unnecessary.
– corsiKa
Jul 20 '10 at 21:42
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Synchronizing a local Git repository with a remote one
...er in these repositories, we override the local ones with the remote ones, and if there are files in local repositories that do not exist in the remote, the local files get removed.
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What's the difference between using “let” and “var”?
...let keyword was introduced to the language was function scope is confusing and was one of the main sources of bugs in JavaScript.
Take a look at this example from another stackoverflow question:
var funcs = [];
// let's create 3 functions
for (var i = 0; i < 3; i++) {
// and store them in fun...
How to detect Windows 64-bit platform with .NET?
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UPDATE: As Joel Coehoorn and others suggest, starting at .NET Framework 4.0, you can just check Environment.Is64BitOperatingSystem.
IntPtr.Size won't return the correct value if running in 32-bit .NET Framework 2.0 on 64-bit Windows (it would return...
Elegant way to check for missing packages and install them?
...de with coauthors these days. Many of them are novice/intermediate R users and don't realize that they have to install packages they don't already have.
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