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Binding arrow keys in JS/jQuery
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document.onkeydown = function(e) {
switch(e.which) {
case 37: // left
break;
case 38: // up
break;
case 39: // right
break;
case 40: // down
break;
default: return; // exit this handler for other keys
}
e.pr...
Why are preprocessor macros evil and what are the alternatives?
...ly becomes completely the wrong thing....
Replacement: real functions.
3) Macros have no namespace
If we have a macro:
#define begin() x = 0
and we have some code in C++ that uses begin:
std::vector<int> v;
... stuff is loaded into v ...
for (std::vector<int>::iterator it = m...
Deleting elements from std::set while iterating
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This is implementation dependent:
Standard 23.1.2.8:
The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements.
Maybe you could try th...
What are the differences between SML and OCaml? [closed]
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3 Answers
3
Active
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Android studio using > 100% CPU at all times - no background processes appear to be running
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edited Jul 9 '18 at 13:16
answered Nov 24 '13 at 16:22
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rreplace - How to replace the last occurrence of an expression in a string?
... s.rsplit(old, occurrence)
... return new.join(li)
...
>>> s
'1232425'
>>> rreplace(s, '2', ' ', 2)
'123 4 5'
>>> rreplace(s, '2', ' ', 3)
'1 3 4 5'
>>> rreplace(s, '2', ' ', 4)
'1 3 4 5'
>>> rreplace(s, '2', ' ', 0)
'1232425'
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UITableView backgroundColor always gray on iPad
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Wayne Hartman
17.3k55 gold badges7979 silver badges114114 bronze badges
answered Apr 22 '10 at 3:52
drawnonwarddrawnon...
How to wait in a batch script? [duplicate]
...1 -w %1000 > nul
NOTE: The 192.0.2.x address is reserved as per RFC 3330 so it definitely will not exist in the real world. Quoting from the spec:
192.0.2.0/24 - This block is assigned as "TEST-NET" for use in
documentation and example code. It is often used in conjunction with
domai...
Primary key or Unique index?
...ble1 (foo, bar) VALUES (2, 2); -- OK
INSERT INTO table1 (foo, bar) VALUES (3, 1); -- OK
INSERT INTO table1 (foo, bar) VALUES (1, 4); -- Fails!
Duplicate entry '1' for key 'ux_table1_foo'
The last insert fails because it violates the unique index on column foo when it tries to insert the value 1 i...
Missing file warnings showing up after upgrade to Xcode 4
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Kiel Gillard
19311 silver badge1010 bronze badges
answered Mar 21 '11 at 14:27
SulthanSulthan
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