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Ruby function to remove all white spaces?
......, which is overly verbose and provides many opportunities for typos and errors of omission.
– joel.neely
Sep 8 '12 at 23:48
14
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Array to Hash Ruby
...try this method with a large array, it will fill up the stack and cause an error (an error along the same lines as a stack overflow).
– Ben Lee
Mar 13 '14 at 0:02
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The object cannot be deleted because it was not found in the ObjectStateManager
I am getting this error "The object cannot be deleted because it was not found in the ObjectStateManager."
10 Answers
...
Do fragments really need an empty constructor?
...Instance(
R.string.alert_title,
"Oh no, an error occurred!")
)
.commit();
}
}
This way if detached and re-attached the object state can be stored through the arguments. Much like bundles attached to Intents.
Reason - Extra reading
I tho...
“No newline at end of file” compiler warning
...reasons why you might not want the newline so it is only a warning, not an error.
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Name node is in safe mode. Not able to leave
...d:
bin/hadoop dfsadmin -safemode leave
You are getting Unknown command error for your command as -safemode isn't a sub-command for hadoop fs, but it is of hadoop dfsadmin.
Also after the above command, I would suggest you to once run hadoop fsck so that any inconsistencies crept in the hdfs mig...
When should I use nil and NULL in Objective-C?
...l null]];
[check addObject:nil];
On the second line, we will not get any error, because it is perfectly fair to insert a NSNull object into a collection type object. On the third line, we will get "object cannot be nil" error. Because nil is not an object.
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How to compare two NSDates: Which is more recent?
...
Well - the compare method is as error-prone as off-by-one errors. Thus, you should use (NSDate *)laterDate:(NSDate *)anotherDate which will return the later date of both. so you just compare your expected result and you're done! No fiddling around with "Waa...
How to upload a file in Django? [closed]
...a">
{% csrf_token %}
<p>{{ form.non_field_errors }}</p>
<p>{{ form.docfile.label_tag }} {{ form.docfile.help_text }}</p>
<p>
{{ form.docfile.errors }}
{{ form.docfile }}
</...
Why should I prefer single 'await Task.WhenAll' over multiple awaits?
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Yes, use WhenAll because it propagates all errors at once. With the multiple awaits, you lose errors if one of the earlier awaits throws.
Another important difference is that WhenAll will wait for all tasks to complete even in the presence of failures (faulted or can...