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Get lengths of a list in a jinja2 template
... products|length > 1 %}
jinja2's builtin filters are documented here; and specifically, as you've already found, length (and its synonym count) is documented to:
Return the number of items of a sequence or mapping.
So, again as you've found, {{products|count}} (or equivalently {{products|...
How to use a variable for the key part of a map
...ivalent to ['a':1]. This can be confusing if you define a variable named a and that you want the value of to be the key in your map. If this is the case, then you must escape >the key by adding parenthesis..
– Michal Bernhard
Mar 2 '16 at 13:10
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How is “mvn clean install” different from “mvn install”?
What is the difference between mvn clean install and mvn install ?
5 Answers
5
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Prevent line-break of span element
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The white-space property declares how white space inside the element is handled.
Values
normal
This value directs user agents to collapse sequences of white space, and break lines as necessary to fill line boxes.
pre
This value prevents user agents from collapsing sequences of white space. Line...
Detect if a jQuery UI dialog box is open
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How would you do this test for any and all dialogs? Say you have ten different dialogs with separate inits and options and you want to test if ANY of them are open, not a specific selector?
– Kirk Ross
Nov 12 '14 at 21:56...
Reading a string with scanf
...("%s", string) is equivalent to scanf("%s", &string[0]). On the other hand, scanf("%s", &string) passes a pointer-to-char[256], but it points to the same place.
Then scanf, when processing the tail of its argument list, will try to pull out a char *. That's the Right Thing when you've passe...
Why does Pycharm's inspector complain about “d = {}”?
... a shame because it is useful for many things like PEP, ..., real problems and real performance hints.
– dashesy
Jan 14 '15 at 18:09
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Concatenate strings in Less
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Thanks, i just came across the same problem and missed that in the docs.
– David
May 3 '12 at 18:24
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Add a fragment to the URL without causing a redirect?
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No worries - and it makes you wonder why it always returns it.
– alex
Nov 26 '10 at 2:13
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How to forward declare a C++ template class?
...n value }
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};
Note that the default is in the forward declaration and not in the actual definition.
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