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Ant: How to execute a command for each file in directory?
... <condition property="hasMoreElements">
<contains string="@{list}" substring=";" />
</condition>
<loadresource property="tail" if:true="${hasMoreElements}">
<concat>@{list}</concat>
<filte...
Providing a default value for an Optional in Swift?
...as coalescing operator (??) that allows that. For example, for an optional String myOptional you could write:
result = myOptional ?? "n/a"
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Redirect stdout to a file in Python?
... to replace the 'w' attribute with, os.O_WRONLY|os.O_CREATE ... can't send strings into the "os" commands!
– Ch'marr
Jul 26 '12 at 21:52
3
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Clearing using jQuery
...security reasons you can't set the value of a file input, even to an empty string.
All you have to do is reset the form where the field or if you only want to reset the file input of a form containing other fields, use this:
function reset_field (e) {
e.wrap('<form>').parent('form').trig...
How to do this using jQuery - document.getElementById(“selectlist”).value
...'s actually because jQuery uses a regular expression first to separate out strings in the selector to check by, and of course running the constructor:
rquickExpr = /^(?:(<[\w\W]+>)[^>]*|#([\w-]*))$/
Whereas using a DOM element as an argument returns immediately with 'this'.
So this:
$...
Does Git publicly expose my e-mail address?
...o this).
I suppose you could fill in a fake email address or use an empty string or space or something (I don't think Git checks the format or validity of the email), but the email is useful if someone who clones the repo needs to send you a patch or contact you in some way.
...
Annotating text on individual facet in ggplot2
...ag_pool[lay$PANEL], close), x = x, y = y)
p + geom_text(data = tags, aes_string(x = "x", y = "y", label = "label"), ..., hjust = hjust,
vjust = vjust, fontface = fontface, family = family, inherit.aes = FALSE)
}
Align top right & use Roman numerals
tag_facet(p, x = Inf,...
Determine a user's timezone
...en has daylight savings. Why not use this instead: >>> date.toTimeString() "15:46:04 GMT+1200 (New Zealand Standard Time)"
– Keyo
Aug 30 '12 at 3:49
20
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Is storing a delimited list in a database column really that bad?
...t fetching the whole list.
Can't store a list longer than what fits in the string column.
Hard to search for all entities with a given value in the list; you have to use an inefficient table-scan. May have to resort to regular expressions, for example in MySQL:
idlist REGEXP '[[:<:]]2[[:>:]]'*...
What does java:comp/env/ do?
...ctFactoryBean that is, when set to true, used to automatically prepend the string java:comp/env/ if it is not already present.
<bean id="someId" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/loc"/>
<property name="resourceRef" value...