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Explain Python entry points?
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edited Oct 23 '19 at 10:33
Paolo
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answered Ap...
How can I get the list of a columns in a table for a SQLite database?
...a table_info(table_name) statement:
sqlite> pragma table_info(people);
0|first_name|varchar|0||0
1|last_name|varchar|0||0
2|email_address|varchar|0||0
For more information on the pragma statements, see the documentation.
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Access multiple elements of list knowing their index
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edited Dec 16 '18 at 1:04
answered Aug 16 '13 at 11:25
T...
Is there a command to list SVN conflicts?
... the conflicts, pipe the status through grep.
svn status | grep -P '^(?=.{0,6}C)'
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How to disable scrolling temporarily?
...ed with scrolling.
[Working demo]
// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = {37: 1, 38: 1, 39: 1, 40: 1};
function preventDefault(e) {
e.preventDefault();
}
function preventDefaultForScrollKeys(e) {
if (keys[e.keyCode]) ...
Pass a data.frame column name to a function
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109
You can just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 &l...
What is the meaning of the term arena in relation to memory?
... For example:
char * arena = malloc(HUGE_NUMBER);
unsigned int current = 0;
void * my_malloc(size_t n) { current += n; return arena + current - n; }
The point is that you get full control over how the memory allocation works. The only thing outside your control is the single library call for th...
How to detect my browser version and operating system using JavaScript?
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10 Answers
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Using do block vs braces {}
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102
Ruby cookbook says bracket syntax has higher precedence order than do..end
Keep in mind tha...
What's the difference between Sender, From and Return-Path?
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answered Dec 6 '10 at 14:37
Shawn D.Shawn D.
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