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How to check that a string is an int, but not a double, etc.?
...ill do some strange things such as return true for "+123". It is mitigated by that it's meant to return the true int but it still might not be what people want which is a strict int check.
– jgmjgm
Dec 11 '17 at 18:09
...
Places where JavaBeans are used?
...forward(request, response);
}
In for example a JSP page you can access it by EL, which follows the Javabean conventions, to display the data:
<table>
<tr>
<th>ID</th>
<th>Name</th>
<th>Birthdate</th>
</tr>
<...
What does %~d0 mean in a Windows batch file?
...nment variable name is not
defined or the file is not found by the
search, then this modifier expands to the
empty string
You can find the above by running FOR /?.
share
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Git - working on wrong branch - how to copy changes to existing topic branch
...ou won't lose anything. (This was actually mentioned in the comments first by Cascabel)
As other people have mentioned in the comments, if branch123 doesn't exist yet, you can do
git checkout -b branch123
Based on what I found here.
...
How to add 30 minutes to a JavaScript Date object?
...;
}
And just in case this is not obvious, the reason we multiply minutes by 60000 is to convert minutes to milliseconds.
Be Careful with Vanilla Javascript. Dates Are Hard!
You may think you can add 24 hours to a date to get tomorrow's date, right? Wrong!
addMinutes(myDate, 60*24); //DO NOT DO ...
Using .gitignore to ignore everything but specific directories
...w it worked for me. If someone cares to offer a more informed explanation by all means.
Also, these answers helpful:
how-do-negated-patterns-work-in-gitignore
how-do-gitignore-exclusion-rules-actually-work
NOTE: I tried using double-wildcard 'globs' but according to this that functionality i...
Break out of a While…Wend loop
...
A While/Wend loop can only be exited prematurely with a GOTO or by exiting from an outer block (Exit sub/function or another exitable loop)
Change to a Do loop instead:
Do While True
count = count + 1
If count = 10 Then
Exit Do
End If
Loop
Or for looping a set num...
What does an exclamation mark mean in the Swift language?
...value (Some(T)), or not (None).
If there is a value, this can be obtained by "unwrapping" the variable (obtaining the T from Some(T)).
How is john!.apartment = number73 different from john.apartment = number73? (Paraphrased)
If you write the name of an Optional variable (eg text john, withou...
How to convert object array to string array in Java
..., I found out that performance is not as good as building the array myself by iterating. (Too bad though, I liked it as a one-liner!)
– mdup
Jun 12 '13 at 15:48
1
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UINavigationController “back button” custom text?
The "back button" of a UINavigationController by default shows the title of the last view in the stack. Is there a way to have custom text in the back button instead?
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