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With most operators in F# I can use prefix or infix notation, for example:
let x = a + b
is equivalent to
let x = (+) a b
This does not work for the exponentation operator ** however, because the parenthesised version is treated as a comment. That is, (*this is a comment*) is F# syntax for a comment, so (**) is treated as an empty comment.
let x = a ** b // a raised to b
let x = (**) a b // empty comment, followed by function a applied to b
Is there an escape character I can use or is this simply a strange quirk of the language?
578
Strings in Python are usually enclosed within double quotes ( "" ) or single quotes ( '' ). To create f-strings, you only need to add an f or an F before the opening quotes of your string. For example, "This" is a string whereas f"This" is an f-String.
Also called “formatted string literals,” f-strings are string literals that have an f at the beginning and curly braces containing expressions that will be replaced with their values.
F-strings provide a way to embed expressions inside string literals, using a minimal syntax. It should be noted that an f-string is really an expression evaluated at run time, not a constant value. In Python source code, an f-string is a literal string, prefixed with 'f', which contains expressions inside braces.
Python f-strings provide a faster, more readable, more concise, and less error prone way of formatting strings in Python. The f-strings have the f prefix and use {} brackets to evaluate values.
Try using spaces between the parentheses, as pointed by kvb in the comments:
let x = ( ** ) a b
answered Sep 22 '22 23:09
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