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Grepping a huge file (80GB) any way to speed it up?
...for an hour on a fairly powerful linux server which is otherwise not overloaded.
Any alternative to grep? Anything about my syntax that can be improved, (egrep,fgrep better?)
...
Best way to define private methods for a class in Objective-C
...
There isn't, as others have already said, such a thing as a private method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) ca...
Iterate over the lines of a string
...level (esp. by loops of += of very small pieces) can be quite slow.
Edit: added @Jacob's proposal, slightly modified to give the same results as the others (trailing blanks on a line are kept), i.e.:
from cStringIO import StringIO
def f4(foo=foo):
stri = StringIO(foo)
while True:
...
Rounded table corners CSS only
...{
border-collapse:separate;
border:solid black 1px;
border-radius:6px;
-moz-border-radius:6px;
}
td, th {
border-left:solid black 1px;
border-top:solid black 1px;
}
th {
background-color: blue;
border-top: none;
}
td:first-child, th:first-child {
...
What does axis in pandas mean?
...long the rows (namely, index in pandas), and axis=1 along the columns. For added clarity, one may choose to specify axis='index' (instead of axis=0) or axis='columns' (instead of axis=1).
+------------+---------+--------+
| | A | B |
+------------+---------+---------
| 0 ...
Fast way of finding lines in one file that are not in another?
...fferences, similar to printf format specifiers. These options format new (added), old (removed) and unchanged lines respectively. Setting one to empty "" prevents output of that kind of line.
If you are familiar with unified diff format, you can partly recreate it with:
diff --old-line-format="-%...
Proper way to wait for one function to finish before continuing?
..., in my experience they tend to result in code that is more difficult to read and maintain. There are situations where I still use them though, such as to pass in progress events and the like as parameters. This update is just to emphasise alternatives.
Also the original question doesn't specifical...
How to append something to an array?
...; arr.length; i++) {
console.log(arr[i]);
}
Update
If you want to add the items of one array to another array, you can use firstArray.concat(secondArray):
var arr = [
"apple",
"banana",
"cherry"
];
arr = arr.concat([
"dragonfruit",
"elderberry",
"fig"
]);
console.log(arr);...
Append text to input field
... '18 at 8:04
Dream Hunter - hashADH
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answered May 8 '09 at 20:50
...
nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
... setting up a new server. The http-Server of my choice is NGINX. I want to add the domain audi-freunde-einbeck.de as a virtual host. I already have 2 other domains in there and it works fine, but when I try to add the above mentioned domain and start the server it gives me Job failed. See system ...