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XPath query to get nth instance of an element
...do not control) that has several input elements all with the same fixed id attribute of "search_query" . The contents of the file can change, but I know that I always want to get the second input element with the id attribute "search_query" .
...
Selecting only first-level elements in jquery
...ave the initial ul, you can use the children() method, which will only consider the immediate children of the element. As @activa points out, one way to easily select the root element is to give it a class or an id. The following assumes you have a root ul with id root.
$('ul#root').children('li'...
Split a string on whitespace in Go?
...substrings
of s not contained in the slice returned by FindAllString. When called
on an expression that contains no metacharacters, it is equivalent to strings.SplitN.
Example:
s := regexp.MustCompile("a*").Split("abaabaccadaaae", 5)
// s: ["", "b", "b", "c", "cadaaae"]
The count determines the ...
Why does JPA have a @Transient annotation?
... they have different meanings. The @Transient annotation tells the JPA provider to not persist any (non-transient) attribute. The other tells the serialization framework to not serialize an attribute. You might want to have a @Transient property and still serialize it.
...
Should I pass a shared_ptr by reference? [duplicate]
..., std::ref(p)), we'd be in all sorts of trouble: The shared pointer in the calling scope could expire and destroy the object, and you would be left with a dangling reference and an invalid pointer!
I hope these two admittedly fairly contrived examples shed a bit of light on when you really want you...
“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
...
set startup-with-shell off
You can also put this last command in a file called .gdbinit in your home directory, in which case it will be applied automatically every time you start gdb
echo "set startup-with-shell off" >> ~/.gdbinit
SOURCE:
https://sourceware.org/gdb/wiki/BuildingOnDarwin...
Convert a python 'type' object to a string
...roxy:
def __init__(self, _type):
self._type = _type
def __call__(self, *args, **kwargs):
return self._type(*args, **kwargs)
def __str__(self):
return self._type.__name__
def __repr__(self):
return "TypeProxy(%s)" % (repr(self._type),)
>>> ...
How can I display just a portion of an image in HTML/CSS?
...
Just to clarify, you’d set the width and height of the container td, div, span or whatever to 50px to make this work.
– Paul D. Waite
Apr 27 '09 at 8:38
...
Oracle: If Table Exists
...ther reason (that might be important) the exception is still raised to the caller:
BEGIN
EXECUTE IMMEDIATE 'DROP TABLE ' || table_name;
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE != -942 THEN
RAISE;
END IF;
END;
ADDENDUM
For reference, here are the equivalent blocks for othe...
Is a `=default` move constructor equivalent to a member-wise move constructor?
...t decl-specifier-seqopt declarator virt-specifier-seqopt = default ;
is called an explicitly-defaulted definition. A function that is explicitly defaulted shall
be a special member function,
have the same declared function type (except for possibly differing ref-qualifiers and except that in th...