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Insert a commit before the root commit in Git?
I've asked before about how to squash the first two commits in a git repository.
15 Answers
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Send attachments with PHP Mail()?
I need to send a pdf with mail, is it possible?
14 Answers
14
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How to sort a dataframe by multiple column(s)
I want to sort a data.frame by multiple columns. For example, with the data.frame below I would like to sort by column z (descending) then by column b (ascending):
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jQuery Ajax POST example with PHP
...form id="foo">
<label for="bar">A bar</label>
<input id="bar" name="bar" type="text" value="" />
<input type="submit" value="Send" />
</form>
jQuery:
// Variable to hold request
var request;
// Bind to the submit event of our form
$("#foo").submit(fu...
Integrating the ZXing library directly into my Android application
...is can be used for URLs too, but string
// must include "http://" or "https://".
public static final String TEXT = "TEXT_TYPE";
// An email type. Use Intent.putExtra(DATA, string) where string is the email address.
public static final String EMAIL = "EMAIL_TYPE";
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SQLite Concurrent Access
...n tell, there are no exceptions to that. The details are on SQLite's site: https://www.sqlite.org/lockingv3.html
This statement is of interest: "The pager module makes sure changes happen all at once, that either all changes occur or none of them do, that two or more processes do not try to access ...
git replacing LF with CRLF
...h
git rm --cached -r .
and re-write git index with
git reset --hard
https://help.github.com/articles/dealing-with-line-endings/#refreshing-a-repository-after-changing-line-endings
Note: this is will remove your local changes, consider stashing them before you do this.
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Is there a generator version of `string.split()` in Python?
string.split() returns a list instance. Is there a version that returns a generator instead? Are there any reasons against having a generator version?
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Push Notifications in Android Platform
I am looking to write an app that receives pushed alerts from a server. I found a couple of methods to do this.
20 Answer...
Why use static_cast(x) instead of (int)x?
I've heard that the static_cast function should be preferred to C-style or simple function-style casting. Is this true? Why?
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