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How do I get the number of elements in a list?
...ng, bytes, tuple, list, or range) or
a collection (such as a dictionary, set, or frozen set).
len is implemented with __len__, from the data model docs:
object.__len__(self)
Called to implement the built-in function len(). Should return the length of the object, an integer >= 0. Also, an...
github locks up mac terminal when using pull command
...E_MSG#
Remove MERGE_HEAD
rm .git/MERGE_HEAD
Additionally, I explicitly set git's editor to an editor that I am familiar with vim (you can set nano)
`git config --global core.editor "vim"`
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How to catch integer(0)?
...al and avoid any attribute problems by using the fact that it is the empty set of that class of object and combine it with an element of that class:
attr(a,"foo")<-"bar"
> identical(1L,c(a,1L))
[1] TRUE
Or more generally:
is.empty <- function(x, mode=NULL){
if (is.null(mode)) mode ...
How to find out the MySQL root password
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thanks to @thusharaK I could reset the root password without knowing the old password.
On ubuntu I did the following:
sudo service mysql stop
sudo mysqld_safe --skip-grant-tables --skip-syslog --skip-networking
Then run mysql in a new terminal:
mysql ...
Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
...fer it if they didn't float but stayed static as they do when the style is set to UITableViewStyleGrouped .
29 Answers
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Gmail's new image caching is breaking image links in newsletter
...you have fixed the issues with your images by uploading missing images and setting permissions for protected images. Why? Clearing your browser's cache has no impact. GoogleImageProxy will never fetch the fresh images even for your newer email because the images are now cached into GoogleImageProxy ...
How to change identity column values programmatically?
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You need to
set identity_insert YourTable ON
Then delete your row and reinsert it with different identity.
Once you have done the insert don't forget to turn identity_insert off
set identity_insert YourTable OFF
...
pycharm running way slow
...hange indexed directories
Exclude directories from being indexed which are set in the project paths but not actually required to be searched and indexed. Press ALT+CTRL+S and search for project.
3. Do memory sweeps
There is another interesting feature:
Go into the settings (File/Settings) and sea...
How to make execution pause, sleep, wait for X seconds in R?
...any languages, there is a sleep function, but ?sleep references a data set. And ?pause and ?wait don't exist.
2 Ans...
Razor View Engine : An expression tree may not contain a dynamic operation
...
Seems like your view is typed dynamic. Set the right type on the view and you'll see the error go away.
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