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YYYY-MM-DD format date in shell script
... can be viewed from the date man pages (for external non-bash specific command):
man date
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StringUtils.isBlank() vs String.isEmpty()
...ngUtils.isEmpty(" bob ") = false
Warning: In java.lang.String.isBlank() and java.lang.String.isEmpty() work the same except they don't return true for null.
java.lang.String.isBlank() (since Java 11)
java.lang.String.isEmpty()
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How do I check for nulls in an '==' operator overload without infinite recursion?
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And what does foo1.Equals(foo2) means if, for example, I want foo1 == foo2 only if foo1.x == foo2.x && foo1.y == foo2.y? Isn't this answering ignoring the case where foo1 != null but foo2 == null?
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XmlSerializer - There was an error reflecting type
... [Serializable] attribute on it. I am creating an XMLSerializer class and passing that into the constructor:
18 Answer...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
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To expand upon Christian's answer, the only reliable way to do this would be to combine mkdir and cp:
mkdir -p /foo/bar && cp myfile "$_"
As an aside, when you only need to create a single directory in an existing hierar...
Remove all whitespaces from NSString
...stringByTrimmingCharactersInSet only removes characters from the beginning and the end of the string, not the ones in the middle.
1) If you need to remove only a given character (say the space character) from your string, use:
[yourString stringByReplacingOccurrencesOfString:@" " withString:@""]
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How to convert DateTime to/from specific string format (both ways, e.g. given Format is “yyyyMMdd”)?
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if you have a date in a string with the format "ddMMyyyy" and want to convert it to "yyyyMMdd" you could do like this:
DateTime dt = DateTime.ParseExact(dateString, "ddMMyyyy",
CultureInfo.InvariantCulture);
dt.ToString("yyyyMMdd");
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Send POST Request with Data Specified in File via Curl
I need to make a POST request via Curl from the command line. Data for this request is located in a file. I know that via PUT this could be done with the --upload-file option.
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Python try-else
...- if there was no exception. Honestly, I've never found a need.
However, Handling Exceptions notes:
The use of the else clause is better
than adding additional code to the try
clause because it avoids accidentally
catching an exception that wasn’t
raised by the code being protected by...
How to write lists inside a markdown table?
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If you want a no-bullet list (or any other non-standard usage) or more lines in a cell use <br />
| Event | Platform | Description |
| ------------- |-----------| -----:|
| `message_received`| `facebook-messenger`<br/>`skype`|
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