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How can I determine if a String is non-null and not only whitespace in Groovy?
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@cdeszaq if you do def myVal = (myString?.trim()) then myVal is either a String or null, wrapping it in braces doesn't change it to a boolean. However, if you assign it to a boolean variable or use (myString?.trim()) as boolean or (as in my answer) use it in an if statement...
Are there any naming convention guidelines for REST APIs? [closed]
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If you had three variables (var)s named x, y, z, then you're URL would look like: sub.domain.tld/x/value_of_x/y/value_of_y/z/value_of_z
– Dennis
Oct 31 '12 at 12:41
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If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
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Note: If you are using both NETWORK_PROVIDER and GPS_PROVIDER, then you need to request only the ACCESS_FINE_LOCATION permission, because it includes permission for both providers. (Permission for ACCESS_COARSE_LOCATION includes permission only for NETWORK_PROVIDER.)
In short: yes, you...
Allow user to select camera or gallery for image
...dd(finalIntent);
}
(I wrote this directly here so this may not compile)
Then, for more info on creating a custom dialog from a list see https://developer.android.com/guide/topics/ui/dialogs.html#AlertDialog
share
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How to include another XHTML in XHTML using JSF 2.0 Facelets?
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This needs to be opened by /page.xhtml. If there is no <ui:define>, then the default content inside <ui:insert> will be displayed instead, if any.
<ui:param>
You can pass parameters to <ui:include> or <ui:composition template> by <ui:param>.
<ui:include ...&g...
recursion versus iteration
...nrestricted (a la C, you can do whatever you want with your loop counter), then that is correct. If it's a real for loop (say as in Python or most functional languages where you cannot manually modify the loop counter), then it is not correct.
All (computable) functions can be implemented both rec...
How to export plots from matplotlib with transparent background?
...te pixels transparent?
If you want to turn an entire area to transparent, then there's this question: And then use the PIL library like in this question Python PIL: how to make area transparent in PNG? so as to make your graph transparent.
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How do I make and use a Queue in Objective-C?
... a Queue data structure. Your best bet is to create an NSMutableArray, and then use [array lastObject], [array removeLastObject] to fetch the item, and [array insertObject:o atIndex:0]...
If you're doing this a lot, you might want to create an Objective-C category to extend the functionality of the...
How to switch to the new browser window, which opens after click on the button?
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driver.close() will work for new window. If it is new Tab then use the code to close the new tab: driver.findElement(By.cssSelector("body")).sendKeys(Keys.CONTROL + "w");
– Ripon Al Wasim
Feb 25 '16 at 12:41
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Numpy `logical_or` for more than two arguments
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If you're asking about numpy.logical_or, then no, as the docs explicitly say, the only parameters are x1, x2, and optionally out:
numpy.logical_or(x1, x2[, out]) = <ufunc 'logical_or'>
You can of course chain together multiple logical_or calls like thi...