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Regex to match only letters
...ercase. [a-zA-Z]+ matches one or more letters and ^[a-zA-Z]+$ matches only strings that consist of one or more letters only (^ and $ mark the begin and end of a string respectively).
If you want to match other letters than A–Z, you can either add them to the character set: [a-zA-ZäöüßÄÖÜ]....
Rails Model find where not equal
...is is the only refactor you are going to make, it is not worth using a gem and I would just stick with what you got. Squeel is useful in situations where you have many complex queries interacting with Ruby code.
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Difference Between ViewData and TempData?
..., one way only
It’s life lies only during the current request
If passing string then no need to typecast
If passing object then you need to typecast it but before that you need to check if it is not null
Its a property on ControllerBase, which is the parent of Controller class
TempData:
TempD...
Can a constructor in Java be private?
...e constructor helps code reuse.
public class MyClass {
private final String value;
private final String type;
public MyClass(int x){
this(Integer.toString(x), "int");
}
public MyClass(boolean x){
this(Boolean.toString(x), "boolean");
}
public ...
How to extract epoch from LocalDate and LocalDateTime?
...01:00:00").getTime() / 1000;
Convert from epoch to human readable date:
String date = new java.text.SimpleDateFormat("MM/dd/yyyyHH:mm:ss").format(new java.util.Date (epoch*1000));
For other language converter:
https://www.epochconverter.com
...
How do I programmatically determine operating system in Java?
...find this code useful:
class ShowProperties {
public static void main(String[] args) {
System.getProperties().list(System.out);
}
}
All it does is print out all the properties provided by your Java implementations. It'll give you an idea of what you can find out about your Java en...
SQL select join: is it possible to prefix all columns as 'prefix.*'?
I'm wondering if this is possible in SQL. Say you have two tables A and B, and you do a select on table A and join on table B:
...
How to have conditional elements and keep DRY with Facebook React's JSX?
...
Just leave banner as being undefined and it does not get included.
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Sending email in .NET through Gmail
...ame");
var toAddress = new MailAddress("to@example.com", "To Name");
const string fromPassword = "fromPassword";
const string subject = "Subject";
const string body = "Body";
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeli...
Using the star sign in grep
I am trying to search for the substring "abc" in a specific file in linux/bash
10 Answers
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