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Regexp Java for password validation
...?=\S*?[0-9])(?=\S*?[a-z])(?=\S*?[A-Z])(?=\S*?[@#$%^&+=])\S{8,}\z
But now for the really important issue: none of the answers mentions the fact that the original question seems to be written by somebody who thinks in ASCII. But in Java strings are Unicode. Are non-ASCII characters allowed in ...
Can we use join for two different database tables?
...lientId (let's leave asside why those tables are in different databases).
Now, to perform a join on the above-mentioned tables you will be using this query:
select *
from Db1.dbo.Clients c
join Db2.dbo.Messages m on c.ClientId = m.ClientId
...
What does “:=” do?
...mpanying explanation. It's not exactly possible to google its use without knowing the proper name for it.
10 Answers
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PostgreSQL - how to quickly drop a user with existing privileges
...orking for me, until I scrolled down just a little bit further to this, so now I have some hair left. Some. :D thank you!!
– Mitch Kent
Jan 18 '19 at 16:28
add a comment
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Using margin:auto to vertically-align a div
So I know we can center a div horizontally if we use margin:0 auto; . Should margin:auto auto; work how I think it should work? Centering it vertically as well?
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How can I pass a parameter to a setTimeout() callback?
...st isn't right.
UPDATE:
As Hobblin said in his comments to the question, now you can pass arguments to the function inside setTimeout using Function.prototype.bind().
Example:
setTimeout(postinsql.bind(null, topicId), 4000);
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Custom UITableViewCell from nib in Swift
...r custom cell in your .xib file. Have a look at this video if you need to know more about Auto layout.
– Imanou Petit
Aug 28 '14 at 12:29
2
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What is a columnar database?
I have been working with warehousing for a while now.
7 Answers
7
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How to tell if a string is not defined in a Bash shell script
...not, you can do the following:
isdefined=0
${mystr+ export isdefined=1}
now, if isdefined=0 then the variable was undefined, if isdefined=1 the variable was defined
This way of checking variables is better than the above answer because it is more elegant, readable, and if your bash shell was con...
Java: How to convert List to Map
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You know the size beforehand so you can do Map<Key,Item> map = new HashMap<Key,Item>(list.size());
– Víctor Romero
Jun 5 '13 at 12:18
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