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/etc/apt/sources.list" E212: Can't open file for writing
...ory
or the file name is not valid.
Vim has a builtin help system. I just quoted what it says to :h E212.
You might want to edit the file as a superuser as sudo vim FILE. Or if you don't want to leave your existing vim session (and now have proper sudo rights), you can issue:
:w !sudo tee % > ...
How to set initial value and auto increment in MySQL?
...it
ALTER TABLE users ADD id INT UNSIGNED NOT NULL AUTO_INCREMENT,
ADD INDEX (id);
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How do search engines deal with AngularJS applications?
...h just because they execute javascript doesn't mean that your page will be indexed properly. The safest way is to detect the google bot useragent, use a headless browser like phantomjs, obtain page.content and return static html.
– tester
Aug 26 '14 at 21:15
...
Select2 doesn't work when embedded in a bootstrap modal
...e got it to work.
change
<div id="myModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<...
Allow Google Chrome to use XMLHttpRequest to load a URL from a local file
When trying to do a HTTP request using XMLHttpRequest from a local file, it basically fails due to Access-Control-Allow-Origin violation.
...
How do I trim leading/trailing whitespace in a standard way?
... };
char test_buffer[64];
char comparison_buffer[64];
size_t index, compare_pos;
for( index = 0; sample_strings[index] != NULL; ++index )
{
// Fill buffer with known value to verify we do not write past the end of the string.
memset( test_buffer, 0xCC, sizeof(t...
HttpClient not supporting PostAsJsonAsync method C#
...
Why does referencing a standard system assembly require me to download open source stuff from random locations on the Internet in order to get it to function? Why does this even compile if it cannot resolve its dependencies? This irks me to no end!
– Ne...
What is the use of the ArraySegment class?
...er struct that does nothing but keep a reference to an array and stores an index range. A little dangerous, beware that it does not make a copy of the array data and does not in any way make the array immutable or express the need for immutability. The more typical programming pattern is to just k...
SQL Server IN vs. EXISTS Performance
... a bit loose in that:
1) Neither explicitly mention whether a covering index is present in
the left, right, or both sides.
2) Neither takes into account the size of input left side set and
input right side set.
(The question just mentions an overall large result set).
I believ...
multi-step registration process issues in asp.net mvc (split viewmodels, single model)
...ain wizard view model which consists of a list of steps and a current step index:
[Serializable]
public class WizardViewModel
{
public int CurrentStepIndex { get; set; }
public IList<IStepViewModel> Steps { get; set; }
public void Initialize()
{
Steps = typeof(IStepVi...