I had this same question, and after a lot of research, it looks like it’s not possible. The answer from cgat is on the right track, but you can’t actually concatenate references like that. Here are things you can do with “variables” in YAML (which are officially called “node anchors” when you set them and … Read more
This has been added as of C# 6.0 (Visual Studio 2015+). Example: var planetName = “Bob”; var myName = “Ford”; var formattedStr = $”Hello planet {planetName}, my name is {myName}!”; // formattedStr should be “Hello planet Bob, my name is Ford!” This is syntactic sugar for: var formattedStr = String.Format(“Hello planet {0}, my name is … Read more
Whenever TIMTOWTDI (there is more than one way to do it), you should look for the pros and cons. Using “string interpolation” (the second) instead of “string concatenation” (the first): Pros: Is less typing Automatically calls to_s for you More idiomatic within the Ruby community Faster to accomplish during runtime Cons: Automatically calls to_s for … Read more
The syntax helps with evaluating the expression inside it. $arr = @(1,2,3) $msg1 = “$arr.length” echo $msg1 # prints 1 2 3.length – .length was treated as part of the string $msg2 = “$($arr.length)” echo $msg2 # prints 3 You can read more at http://ss64.com/ps/syntax-operators.html
According to The Ruby Programming Language by Flanagan and Matsumoto: When the expression to be interpolated into the string literal is simply a reference to a global, instance or class variable, then the curly braces may be omitted. So the following should all work: @var = “Hi” puts “#@var there!” #=> “Hi there!” @@var = … Read more
According to the documentation: The structure of an interpolated string is as follows: { <interpolationExpression>[,<alignment>][:<formatString>] } The problem is that the colon is used to denote formatting, like: Console.WriteLine($”The current hour is {hours:hh}”) The solution is to wrap the conditional in parenthesis: var result = $”Descending {(isDescending ? “yes” : “no”)}”;
So when you are using interpolation, by default it interpolates just the next variable in toto. So when you do this: “$test[0]” It sees the $test as the next variable, it realizes that this is an array and that it has no good way to display an array, so it decides it can’t interpolate and … Read more
I’m afraid that it will be deprecated during the next Python versions Don’t be, str.format does not appear (nor has a reason) to be leaving any time soon, the PEP that introduced fprefixed-strings even states in its Abstract: This PEP does not propose to remove or deprecate any of the existing string formatting mechanisms. Formatted … Read more
In C++20 you will be able to use std::format. This will support python style formatting: string s = std::format(“{1} to {0}”, “a”, “b”); There is already an implementation available: https://github.com/fmtlib/fmt.
Single quoted strings will not expand variables in PowerShell. Try a double quoted string e.g.: “$computer\admin”