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What is the easiest way to push an element to the beginning of the array?
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What about using the unshift method?
ary.unshift(obj, ...) → ary
Prepends objects to the front of self, moving other elements upwards.
And in use:
irb>> a = [ 0, 1, 2]
=> [0, 1, 2]
irb>> a.unshift('x...
When should I use a struct instead of a class?
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That's correct, I was overly eager. return false is what should have been there, correcting now.
– Andrei Rînea
Nov 13 '14 at 15:11
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How to output only captured groups with sed?
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The key to getting this to work is to tell sed to exclude what you don't want to be output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*...
Coalesce function for PHP?
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What about multiple ternary shortcuts, would something like "echo $a ?: $b ?: $c ?: $d;" work?
– ChrisR
Mar 26 '10 at 13:55
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Does have to be in the of an HTML document?
...author portion of the spec, I consider body styles to be valid. github.com/whatwg/html/issues/1605#issuecomment-235961103
– WraithKenny
Nov 29 '17 at 22:19
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How to find out the MySQL root password
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Awesome. I am comprehending what worked in RHEL 7: Terminal 1: sudo service mysql stop sudo mysqld_safe --skip-grant-tables --skip-syslog --skip-networking Terminal 2: mysql -u root UPDATE mysql.user SET Password=PASSWORD('new password') WHERE User=...
What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...h(); i++){
char c = s.charAt(i);
//Process char
}
That's what I would do. It seems the easiest to me.
As far as correctness goes, I don't believe that exists here. It is all based on your personal style.
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Fastest way to count exact number of rows in a very large table?
..., but it's slow. You can either have exact & slow, or rough and quick. What you do will depend on what's more important for the purpose you need the count for. NO LOCK might include or indeed exclude rows that are mid-transaction or moving pages for whatever reason.
– Davos...
What is the best way to force yourself to master vi? [closed]
...ck with it.
I've been using Vim for so long that I don't even think about what keys to press to search or navigate or save. And my hands never leave the keyboard. To use Vim is one of the best choices I've made in my programming career.
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What is the --save option for npm install?
I saw some tutorial where the command was:
11 Answers
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