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node.js remove file
...ar fs = require('fs');
var gutil = require('gulp-util');
fs.exists('./www/index.html', function(exists) {
if(exists) {
//Show in green
console.log(gutil.colors.green('File exists. Deleting now ...'));
fs.unlink('./www/index.html');
} else {
//Show in red
console.log(gutil.co...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
...using the column name, but instead you would have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country...
Rename a dictionary key
... a O(N) in complexity:
def rename(self,key,new_key):
ind = self._keys.index(key) #get the index of old key, O(N) operation
self._keys[ind] = new_key #replace old key with new key in self._keys
self[new_key] = self[key] #add the new key, this is added at the end of self._keys
...
Searching subversion history (full text)
... you are running Windows have a look at SvnQuery. It maintains a full text index of local or remote repositories. Every document ever committed to a repository gets indexed. You can do google-like queries from a simple web interface.
...
Remove items from one list in another
...
You don't need an index, as the List<T> class allows you to remove items by value rather than index by using the Remove function.
foreach(car item in list1) list2.Remove(item);
...
Fixed page header overlaps in-page anchors
...es links inside the padding area non-clickable. To fix this you must use z-index, and set the links value higher than the anchor's. Remember you topbar should have the highest z-index value, so the page's content don't float ontop of the topbar when you scroll.
– MutttenXd
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In java how to get substring from a string till a character c?
...
look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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Is there a way to dump a stack trace without throwing an exception in java?
...thod that needs to know who its caller is. However, a word of warning: the index of the calling frame within the list could vary according to the JVM! It all depends on how many layers of calls there are within getStackTrace before you hit the point where the trace is generated. A more robust soluti...
Finding differences between elements of a list
...put, however it avoids a whole copy of L.
Accessing the single elements by index is very slow because every index access is a method call in python
numpy.diff is slow because it has to first convert the list to a ndarray. Obviously if you start with an ndarray it will be much faster:
In [22]: arr =...
What does denote in C# [duplicate]
...ss MyArray<T>
{
T[] array = new T[10];
public T GetItem(int index)
{
return array[index];
}
}
In your code, you could then do something like this:
MyArray<int> = new MyArray<int>();
In this case, T[] array would work like int[] array, and public T GetI...