Dart strings can be either raw or … not raw (normal? cooked? interpreted? There isn’t a formal name). I’ll go with “interpreted” here, because it describes the problem you have. In a raw string, “$” and “\” mean nothing special, they are just characters like any other. In an interpreted string, “$” starts an interpolation … Read more
This is related to the fact that browsers insert tbody tags automatically, which creates a mismatch in the comments. The rendered output will look like: <table> <!– ko foreach: MyPlans –> <tbody> <tr> <td>Test</td> </tr> <!– /ko –> </tbody> </table> Steve did put some work into trying to correct mismatched tags in KO, but the … Read more
Use: //node()[not(node())] In case only element leaf nodes are wanted (and this needs clarification — are elements that have non-element children considered leaf nodes?), then the following XPath expression selects them: //*[not(*)] Both expressions above are probably the shortest that select the desired nodes (either any-node or element — leaf nodes).
If you want to use a folded scalar: foo: – bar – bar2 – > super duper long string that I would like to have on multiple lines – Another item Note that there may not be content on the line of the folded scalar’s header (the line with the >). Alternatively, you can just … Read more
I like to read semicolon as OR, comma as AND, full stop as END. So foo(X) when X > 0; X < 7 -> Y = X * 2, case Y of 12 -> bar; _ -> ook end; foo(0) -> zero. reads as foo(X) when X > 0 *OR* X < 7 -> Y … Read more
You can just use iterators: fn main() { let v1 = (0u32..9).filter(|x| x % 2 == 0).map(|x| x.pow(2)).collect::<Vec<_>>(); let v2 = (1..10).filter(|x| x % 2 == 0).collect::<Vec<u32>>(); println!(“{:?}”, v1); // [0, 4, 16, 36, 64] println!(“{:?}”, v2); // [2, 4, 6, 8] }
Go Frequently Asked Questions (FAQ) Why are ++ and — statements and not expressions? And why postfix, not prefix? Without pointer arithmetic, the convenience value of pre- and postfix increment operators drops. By removing them from the expression hierarchy altogether, expression syntax is simplified and the messy issues around order of evaluation of ++ and … Read more
You can separate blockquotes without html elements by using comment markup <!– –> with an extra whiteline between the blocks: > Imagination is more important than knowledge. <!– –> > Never think of the future. It comes soon enough. <!– –> > Anyone who has never made a mistake has never tried anything new. Of … Read more
define i32 @main() #0 This defines a function called main that returns a 32 bit integer. The #0 means to use the attributes named #0 for the function. For example, there may be something like attributes #0 = { alwaysinline alignstack=4 } in the IR, and these attributes will be applied to main. %1 = … Read more
;; is only used in case constructs, to indicate the end of an alternative. (It’s present where you have break in C.) case $answer in yes) echo ‘yay!’;; no) echo ‘boo!’;; esac Syntactically, ; and & both mark the end of a command. A newline is equivalent to ;, in a first approximation. The difference … Read more