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Capitalize first letter. MySQL
... changed the MySQL standard delimiter(;) whilst creating the function, and then reset it back to normal after the function creation script. I also personally wanted the output to be in UTF8 CHARSET too.
Function creation =
DELIMITER ||
CREATE FUNCTION `UC_Words`( str VARCHAR(255) ) RETURNS VAR...
Adding a column to an existing table in a Rails migration
...
If you have already run your original migration (before editing it), then you need to generate a new migration (rails generate migration add_email_to_users email:string will do the trick).
It will create a migration file containing line:
add_column :users, email, string
Then do a rake db:migra...
How to suppress Update Links warning?
... routine for my everyday testing tasks, so I have many of them deployed).
Then, I changed only the following Excel options (i.e. all the other are left as is after installation):
Advanced > General > Ask to update automatic links checked:
Trust Center > Trust Center Settings... >...
What is the difference between integration and unit tests?
...ing
Scenario: A sample one
Given this situation
When I do something
Then what I get is what I was expecting for
No doubt: if the test passes, you can assert you are delivering a working feature. This is what you can call Business Value.
If you want to write a unit test for DoSomething you ...
git selective revert local changes from a file
...e index, if unspecified) and the working tree. The chosen
hunks are then applied in reverse to the working tree (and if a
<tree−ish> was specified, the index).
This means that you can use git checkout −p to selectively discard
edits from your current working ...
How to test an Internet connection with bash?
...ut ping
#!/bin/bash
wget -q --spider http://google.com
if [ $? -eq 0 ]; then
echo "Online"
else
echo "Offline"
fi
-q : Silence mode
--spider : don't get, just check page availability
$? : shell return code
0 : shell "All OK" code
Without wget
#!/bin/bash
echo -e "GET http://google...
Most efficient way to determine if a Lua table is empty (contains no entries)?
...ng. (Consider {[false]=0}.) The correct code is
if next(myTable) == nil then
-- myTable is empty
end
For maximum efficiency you'll want to bind next to a local variable, e.g.,
...
local next = next
...
... if next(...) ...
...
How to comment lines in rails html.erb files? [duplicate]
...
@gotqn Then you will LOVE HAML!
– Chloe
Apr 11 '14 at 18:38
3
...
Why does ++[[]][+[]]+[+[]] return the string “10”?
...od of object O with argument "toString".
If IsCallable(toString) is true then,
a. Let str be the result of calling the [[Call]] internal method of toString, with O as the this value and an empty argument list.
b. If str is a primitive value, return str.
The .toString of an array say...
Running Python code in Vim
...gt; <esc>:w<CR>:exec '!python3' shellescape(@%, 1)<CR>
then you could press <F9> to execute the current buffer with python
Explanation:
autocmd: command that Vim will execute automatically on {event} (here: if you open a python file)
[i]map: creates a keyboard shortcut ...