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Difference between attr_accessor and attr_accessible
...offical doc here Rails Model and here Overwriting default accessor (scroll down to the chapter "Overwrite default accessor")
Say for instance that: we have a database table called "users" that contains three columns "firstname", "lastname" and "role" :
SQL instructions :
CREATE TABLE users (
fi...
How to change folder with git bash?
... dir". Btw this article describes to make the console Quake-style dropping down form top of the screen.
– Vorac
Apr 24 '14 at 8:27
18
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Show constraints on tables command
... programmatically. Of course you will need to add a WHERE clause to narrow down the results
– Naveed Hasan
Jan 27 '14 at 10:30
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Unicode equivalents for \w and \b in Java regular expressions?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to prevent buttons from submitting forms
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@MatthewLock: Hardly - an error in the script just shuts down that code block, and the action proceeds as usual. Try invoking the jQuery event methods e.preventDefault() and/or e.stopPropgation() as the first lines of the method. See stackoverflow.com/questions/2017755/… to learn...
How to indent a few lines in Markdown markup?
...de as I'll use other formatting like bold face, etc. How to do that in Markdown?
22 Answers
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Does Java have something like C#'s ref and out keywords?
... this answer as far as I can remember. If you wait for a single answer and down vote every other answer, then SO should ban all the answer other than that got a confirmation from the owner of the question.
– Levent Divilioglu
Sep 18 '17 at 13:58
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Fastest way to replace NAs in a large data.table
...n the reader has to know that seq_along would be along the columns and not down the rows. seq_len(col(DT)) a tiny bit more explicit for that reason.
– Matt Dowle
Jan 11 '17 at 22:47
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Can we define implicit conversions of enums in c#?
... handle most fo the grunt work, which eases the above declaration of enums down to:
public sealed class AccountStatus : RichEnum<byte, AccountStatus>
{
public static readonly AccountStatus Open = new AccountStatus(1);
public static readonly AccountStatus Closed = new AccountStatus(2);...
Android Studio: how to attach Android SDK sources?
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Open your sdk manager from toolbar menus and download the "Sources for Android SDK" for the API level defined in your build.gradle file like
compileSdkVersion 19 // compile with API level 19
Nothing else needs to be done.
Note : Sources for SDK is available only for...