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PowerShell and the -contains operator
... you're working with a collection containing just one string item.
If you read the documentation you linked to you'll see an example that demonstrates this behaviour:
Examples:
PS C:\> "abc", "def" -Contains "def"
True
PS C:\> "Windows", "PowerShell" -Contains "Shell"
False #Not an exact ...
What is the best JavaScript code to create an img element
... in the above code, if the values weren't hard coded). It's also easier to read (from a JS perspective):
$('#container').append($('<img>', {
src : "/path/to/image.jpg",
width : 16,
height : 16,
alt : "Test Image",
title : "Test Image"
}));
...
Python `if x is not None` or `if not x is None`?
...is y. Although the compiler will always treat it as not (x is y), a human reader might misunderstand the construct as (not x) is y. If I write x is not y then there is no ambiguity.
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improv...
Is there an alternative to string.Replace that is case-insensitive?
...tion is actually much larger than the specific question being asked. After reading through, I'm not sure any answer is a few edits away from assimilating all the good stuff here, so I figured I'd try to sum.
Here's an extension method that I think avoids the pitfalls mentioned here and provides the...
javac not working in windows command prompt
...bles
In "System Variables", scroll down to select "PATH" ⇒ Edit
(( now read the following 3 times before proceeding, THERE IS NO UNDO ))
In "Variable value" field, INSERT "c:\Program Files\Java\jdk1.8.0_xx\bin" (Replace xx with the upgrade number and VERIFY that this is your JDK's binary direct...
If strings are immutable in .NET, then why does Substring take O(n) time?
... I've seen this sort of code quite a bit: string contents = File.ReadAllText(filename); foreach (string line in content.Split("\n")) ... or other versions of it. I mean read an entire file, then process the various parts. That sort of code would be considerably faster and require less memo...
Xcode duplicate/delete line
...the sharing & permissions setting (By pressing the lock) and set it to Read & Write for all.
Enter the folder and find the file IDETextKeyBindingSet.plist. Right Click it, press Get Info, unlock the sharing & permissions setting (By pressing the lock) and set it to Read & Write for a...
How to copy text to clipboard/pasteboard with Swift
...ll you want is plain text, you can just use the string property. It's both readable and writable:
// write to clipboard
UIPasteboard.general.string = "Hello world"
// read from clipboard
let content = UIPasteboard.general.string
(When reading from the clipboard, the UIPasteboard documentation al...
C# naming convention for constants?
...ference, as an example:
public static class Constant
{
public static readonly int Cons1 = 1;
public static readonly int coNs2 = 2;
public static readonly int cOns3 = 3;
public static readonly int CONS4 = 4;
}
// Call constants from anywhere
// Since the class has a unique and reco...
When to prefer JSON over XML?
...uirement is just to display a set of values retrieved from database on a spread. I am using jquery.
18 Answers
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