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How to assign multiple classes to an HTML container? [closed]
...on order. The names in the class attribute have no specified order, since .foo is syntactic sugar for [class ~= foo] ref, "foo is a word in the class attribute".
– Ulrich Schwarz
Jan 13 '14 at 16:50
...
Automatically creating directories with file output [duplicate]
...nction does this. Try the following:
import os
import errno
filename = "/foo/bar/baz.txt"
if not os.path.exists(os.path.dirname(filename)):
try:
os.makedirs(os.path.dirname(filename))
except OSError as exc: # Guard against race condition
if exc.errno != errno.EEXIST:
...
Get filename from file pointer [duplicate]
...
You can get the path via fp.name. Example:
>>> f = open('foo/bar.txt')
>>> f.name
'foo/bar.txt'
You might need os.path.basename if you want only the file name:
>>> import os
>>> f = open('foo/bar.txt')
>>> os.path.basename(f.name)
'bar.txt'
...
What do {curly braces} around javascript variable name mean [duplicate]
...e able to use this pattern to assign multiple variables at once:
{x, y} = foo;
Is the equivalent to:
x = foo.x;
y = foo.y;
This can also be used for arrays. For example, you could easily swap two values without using a temporary variable:
var a = 1;
var b = 3;
[a, b] = [b, a];
Browser s...
shared_ptr指针被赋值后，原指针会引用清零、自动释放。 - C/C++ - 清泛网 ...
...原指针会引用清零、自动释放。std::shared_ptr<int> intg;void foo(std::shared_ptr<int> p){ ...shared_ptr指针被赋值后，原指针会引用清零、自动释放。
std::shared_ptr<int> intg;
void foo(std::shared_ptr<int> p)
{
intg = p; // 原指针释放，存...
背包：将代码块复制并粘贴到不同的屏幕和项目 · App Inventor 2 中文网
...在粘贴的块中重命名为 X2。
同样，如果你尝试粘贴过程 foo 的过程定义，并且工作区已包含 foo 的定义，则粘贴的过程将被重命名为 foo2。
可以将代码块粘贴到任何项目或屏幕中吗？
是的。 但是，在某些情况下，将背包中的...
How to access property of anonymous type in C#?
...
Then from that you look up a property:
PropertyInfo p = t.GetProperty("Foo");
Then from that you can get a value:
object v = p.GetValue(o, null);
This answer is long overdue for an update for C# 4:
dynamic d = o;
object v = d.Foo;
And now another alternative in C# 6:
object v = o?.GetTy...
Dynamic Sorting within SQL Stored Procedures
... readable IMO:
SELECT
s.*
FROM
(SELECT
CASE @SortCol1
WHEN 'Foo' THEN t.Foo
WHEN 'Bar' THEN t.Bar
ELSE null
END as SortCol1,
CASE @SortCol2
WHEN 'Foo' THEN t.Foo
WHEN 'Bar' THEN t.Bar
ELSE null
END as SortCol2,
t.*
FROM
MyTable t) as...
Python convert tuple to string
I have a tuple of characters like such:
4 Answers
4
...
How to default to other directory instead of home directory
...d.sh
Or you can create an alias or function in your $HOME/.bashrc file:
foo() { cd /d/work_space_for_my_company/project/code_source ; }
If the directory name includes spaces or other shell metacharacters, you'll need quotation marks; it won't hurt to add them even if they're not necessary:
foo...