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How do I find if a string starts with another string in Ruby?
...ts 'abcdefg'.start_with?('abc') #=> true
[edit] This is something I didn't know before this question: start_with takes multiple arguments.
'abcdefg'.start_with?( 'xyz', 'opq', 'ab')
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How do I run a single test with Nose in Pylons
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Ahhh, the one combination I didn't try. sigh. Thanks!
– Ben
Sep 14 '10 at 17:10
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Angularjs Template Default Value if Binding Null / Undefined (With Filter)
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Turns out all I needed to do was wrap the left-hand side of the expression in soft brackets:
<span class="gallery-date">{{(gallery.date | date:'mediumDate') || "Various"}}</span>
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What is a 'semantic predicate' in ANTLR?
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actions using plain code.
There are 3 types of semantic predicates:
validating semantic predicates;
gated semantic predicates;
disambiguating semantic predicates.
Example grammar
Let's say you have a block of text consisting of only numbers separated by
comma's, ignoring any white spaces. Yo...
What is the EAFP principle in Python?
What is meant by "using the EAFP principle" in Python? Could you provide any examples?
3 Answers
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Image loaded event in for ng-src in AngularJS
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Here is an example how to call image onload http://jsfiddle.net/2CsfZ/2/
Basic idea is create a directive and add it as attribute to img tag.
JS:
app.directive('imageonload', function() {
return {
restrict: 'A',
link: function(scope, element, attrs) {
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Why and not taking font-family and font-size from body?
...m, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif; }
– getup8
Jun 23 at 5:14
add a commen...
Difference: std::runtime_error vs std::exception()
...proach, offered to you by the authors of the language. As you see, they decided to split all exception types into "runtime errors" and "logic errors" and let you proceed from there with your own exception types. There are, of course, alternative ways to structure that hierarchy, which might be more ...
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
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-n: Places a non-printing loop around your command.
-e: Allows you to provide the program as an argument rather
than in a file. You don't want to have to create a script
file for every little Perl one-liner.
-i: Modifies your input file in-place (making a backup of the
original). Handy ...
Consequences of using graft in Mercurial
...at's some pretty funky thinking by whoever came up with that. I've got the idea, but need to work out the general case. I'm guessing it holds no matter the path between nodes you're grafting to/from?
– Paul S
Mar 8 '12 at 13:20
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