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Best way to specify whitespace in a String.Split operation
... to be the delimiters. White-space characters are defined by the Unicode standard and return true if they are passed to the Char.IsWhiteSpace method.
Always, always, always read the documentation!
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Kotlin Ternary Conditional Operator
... code is equivalent:
if (a) b else c
The distinction between expression and statement is important here. In Java/C#/JavaScript, if forms a statement, meaning that it does not resolve to a value. More concretely, you can't assign it to a variable.
// Valid Kotlin, but invalid Java/C#/JavaScript
v...
Print commit message of a given commit in git
I need a plumbing command to print the commit message of one given commit - nothing more, nothing less.
6 Answers
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Any shortcut to initialize all array elements to zero?
...ger[0]);
Would give arr the value:
[42, 42, 42]
(though it's Integer, and not int, if you need the primitive type you could defer to the Apache Commons ArrayUtils.toPrimitive() routine:
int [] primarr = ArrayUtils.toPrimitive(arr);
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Print a file's last modified date in Bash
...
You can use the
stat
command
stat -c %y "$entry"
More info
%y time of last modification, human-readable
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Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss
...imilar to "Unable to create /tmp/java_pidpid.hprof: File exists" in your standard out. Be sure to move your dump file out of the dump path to clear the way for any future dump files; and make use of the <pid> placeholder in the file name to increase entropy in the file name.
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Two statements next to curly brace in an equation
How can I write an equation with one curly brace ( { ), and on the right-hand side next to the curly, two statements in two different lines?
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git: fatal: Could not read from remote repository
...key had been "removed". so ssh-add ~/.ssh/theKeyInQuestion got me back up and running with this repo, didnt know the key removed, or what "removed" even means but at least I was able to get authenticated again. SSH is a total mystery to me even after months of dealing with authentication issues. s...
How do I send a POST request as a JSON?
...xpecting the POST request to be json, then you would need to add a header, and also serialize the data for your request...
Python 2.x
import json
import urllib2
data = {
'ids': [12, 3, 4, 5, 6]
}
req = urllib2.Request('http://example.com/api/posts/create')
req.add_header('Content-Type', ...
How to locate the git config file in Mac [duplicate]
...HOME/.gitconfig on all platforms.
However, you can simply open a terminal and execute git config, which will write the appropriate changes to this file. You shouldn't need to manually tweak .gitconfig, unless you particularly want to.
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