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When to use Cast() and Oftype() in Linq
...ly the elements that can safely be cast to type x.
Cast - will try to cast all the elements into type x. if some of them are not from this type you will get InvalidCastException
EDIT
for example:
object[] objs = new object[] { "12345", 12 };
objs.Cast<string>().ToArray(); //throws InvalidCas...
Sublime Text 2: How to delete blank/empty lines
...
Small suggestion use ^(\r|\n\r?) to cover all possible line breaks.
– Haris Krajina
Nov 7 '12 at 9:22
...
Create SQL script that create database and tables
...
Although Clayton's answer will get you there (eventually), in SQL2005/2008/R2/2012 you have a far easier option:
Right-click on the Database, select Tasks and then Generate Scripts, which will launch the Script Wizard. This allows you to generate a single script that can recr...
Transfer git repositories from GitLab to GitHub - can we, how to and pitfalls (if any)?
... https URL of the GitHub repo:
The requested URL returned an error: 403
All you need to do is to enter your GitHub password, but the OP suggests:
Then you might need to push it the ssh way. You can read more on how to do it here.
See "Pushing to Git returning Error Code 403 fatal: HTTP requ...
How to make Git “forget” about a file that was tracked but is now in .gitignore?
...ed <file>
If you want to remove a whole folder, you need to remove all files in it recursively.
git rm -r --cached <folder>
The removal of the file from the head revision will happen on the next commit.
WARNING: While this will not remove the physical file from your local, it will ...
can't push to branch after rebase
...erge on my development branches because they'll be rebased at any time. Usually the workflow is as follows:
o-----o-----o-----o-----o-----o master
\
o-----o-----o devel0
\
o-----o-----o devel1
Then to stay up-to-date with remo...
How to remove the last character from a string?
...
replace will replace all instances of a letter. All you need to do is use substring():
public String method(String str) {
if (str != null && str.length() > 0 && str.charAt(str.length() - 1) == 'x') {
str = str.subs...
How to make graphics with transparent background in R using ggplot2?
...# for the inside of the boxplot
)
Fastest way is using using rect, as all the rectangle elements inherit from rect:
p <- p +
theme(
rect = element_rect(fill = "transparent") # all rectangles
)
p
More controlled way is to use options of theme:
p <- p +
theme(
...
Make div (height) occupy parent remaining height
...s the first row as a fixed 100px height, and the remain rows will automatically stretch to fill the remaining space.
I'm pretty sure IE11 requires -ms- prefixes, so make sure to validate the functionality in the browsers you wish to support.
Flexbox
CSS3's Flexible Box Layout Module (flexbox) is ...
One line ftp server in python
...k and temporary way to transfer files to a linux box without having to install a ftp server. Preferably a way using built in python libraries so there's nothing extra to install.
...