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C# Events and Thread Safety
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The JIT isn't allowed to perform the optimization you're talking about in the first part, because of the condition. I know this was raised as a spectre a while ago, but it's not valid. (I checked it with either Joe Duffy or Vance Morrison a while ago; I ...
Create PostgreSQL ROLE (user) if it doesn't exist
...n SQL script to create a ROLE in PostgreSQL 9.1, but without raising an error if it already exists?
10 Answers
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How to get the current date without the time?
... a DateTime using the Today property:
DateTime today = DateTime.Today;
or more generally, you can use the Date property. For example, if you wanted the UTC date you could use:
DateTime dateTime = DateTime.UtcNow.Date;
It's not very clear whether that's what you need or not though... if you'r...
Is there any Rails function to check if a partial exists?
...s not exists, I get an Exception. I'd like to check if a partial exists before rendering it and in case it doesn't exist, I'll render something else. I did the following code in my .erb file, but I think there should be a better way to do this:
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Guava equivalent for IOUtils.toString(InputStream)
...e toString method will handle both the creation and closing of the Reader for you.
This is exactly what Jon Skeet suggested, except that there isn't actually any overload of CharStreams.newReaderSupplier that takes an InputStream as input... you have to give it an InputSupplier:
InputSupplier<?...
How do I add comments to package.json for npm install?
... package.json file and I want to add a comment. Is there a way to do this, or are there any hacks to make this work?
20 Ans...
Getting a structural type with an anonymous class's methods from a macro
...nt to write a macro that defines an anonymous class with some type members or methods, and then creates an instance of that class that's statically typed as a structural type with those methods, etc. This is possible with the macro system in 2.10.0, and the type member part is extremely easy:
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Why does a RegExp with global flag give wrong results?
...set lastIndex to 0 after every test, just remove the g flag.
Here's the algorithm that the specs dictate (section 15.10.6.2):
RegExp.prototype.exec(string)
Performs
a regular expression match of string
against the regular expression and
returns an Array object containing the
results of the match, o...
Enable the display of line numbers in Visual Studio
...y of showing line numbers in a source file? Is there any way to enable it, or a plugin for it? I know that the number of lines of code in a program doesn't matter, but sometimes it is nice to know how long a program is or the number of a particular line for reference.
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How to loop through an array containing objects and access their properties
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Use forEach its a built-in array function. Array.forEach():
yourArray.forEach(function (arrayItem) {
var x = arrayItem.prop1 + 2;
console.log(x);
});
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