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Difference between Destroy and Delete
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Basically destroy runs any callbacks on the model while delete doesn't.
From the Rails API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted). Returns the frozen instance.
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Mail multipart/alternative vs multipart/mixed
.../")+1);
return fileName;
}
}
And an example of using it with from Gmail
/**
* Created by StrongMan on 25/05/14.
*/
import com.sun.mail.smtp.SMTPTransport;
import java.net.URL;
import java.security.Security;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex....
When do you use Git rebase instead of Git merge?
...ted change. You probably want to pull and then rebase to base your changes from the current version from the repository.
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Most efficient way to convert an HTMLCollection to an Array
... programmer's ken.
Edit
Since ECMAScript 2015 (ES 6) there is also Array.from:
var arr = Array.from(htmlCollection);
Edit
ECMAScript 2015 also provides the spread operator, which is functionally equivalent to Array.from (although note that Array.from supports a mapping function as the second a...
Returning null as an int permitted with ternary operator but not if statement
...ull reference, but that's not a problem). No Integer object is constructed from the null, so there's no reason for a NumberFormatException.
– Ted Hopp
Nov 15 '11 at 14:30
1
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How to extract img src, title and alt from html using php? [duplicate]
...ache system, you can tweak your own by using ob_start and loading / saving from a text file.
How does this stuff work ?
First, we use preg_ match_ all, a function that gets every string matching the pattern and ouput it in it's third parameter.
The regexps :
<img[^>]+>
We apply it on ...
How do I get the AM/PM value from a DateTime?
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This for get AM/PM from date. But if I want to change AM to PM in any date. Then what should I do ?
– Ajay Sharma
Apr 14 '16 at 6:11
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Extending an Object in Javascript
I am currently transforming from Java to Javascript, and it's a bit hard for me to figure out how to extend objects the way I want it to do.
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Difference between Pig and Hive? Why have both? [closed]
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Check out this post from Alan Gates, Pig architect at Yahoo!, that compares when would use a SQL like Hive rather than Pig. He makes a very convincing case as to the usefulness of a procedural language like Pig (vs. declarative SQL) and its uti...
Bootstrap trying to load map file. How to disable it? Do I need to do it?
I'm recently playing with bootsrap3. I compiled it from sources and included distr js and css to my project. The thing is, I see in GH dev tools, that it's trying to get .map.css file. Why does it want to do so? How to disable it? Do I need to disable it? To not to have an error mark in dev tools, I...