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What is the difference between MVC and MVVM? [closed]
...(or other patterns of organising software into separate responsibilities). One assumption, that frequently came out of this pattern, was that the ViewModel simply replaced the controller in MVC (as if you could just substitute VM for C in the acronym and all would be forgiven)...
The ViewModel does ...
PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
I have a JPA-persisted object model that contains a many-to-one relationship: an Account has many Transactions . A Transaction has one Account .
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check if directory exists and delete in one command unix
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Assuming $WORKING_DIR is set to the directory... this one-liner should do it:
if [ -d "$WORKING_DIR" ]; then rm -Rf $WORKING_DIR; fi
(otherwise just replace with your directory)
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Python json.loads shows ValueError: Extra data
...onaries in the edited question. That's the additional data. If you're the one who made a new.json, just put a single json in a file.
– falsetru
Jan 11 '14 at 5:51
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Is That REST API Really RPC? Roy Fielding Seems to Think So
...nt of what I thought I knew about REST is apparently wrong - and I'm not alone. This question has a long lead-in, but it seems to be necessary because the information is a bit scattered. The actual question comes at the end if you're already familiar with this topic.
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Evenly distributing n points on a sphere
...spreads them out. There's no need for "perfection", but I just need it so none of them are bunched together.
15 Answers
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How SID is different from Service name in Oracle tnsnames.ora
Why do I need two of them? When I have to use one or another?
5 Answers
5
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Change column type from string to float in Pandas
...d usage of each of these methods.
1. to_numeric()
The best way to convert one or more columns of a DataFrame to numeric values is to use pandas.to_numeric().
This function will try to change non-numeric objects (such as strings) into integers or floating point numbers as appropriate.
Basic usage
Th...
Why does ContentResolver.requestSync not trigger a sync?
... to that in a second.
Setting exported true makes it visible to other components (needed so ContentResolver can call it).
The intent filter lets it catch an intent requesting sync. (This Intent comes from ContentResolver when you call ContentResolver.requestSync() or related scheduling methods.)
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Why does the Scala compiler disallow overloaded methods with default arguments?
...hing like:
def foo$String$default$2 = 42
def foo$Int$default$2 = 42
Someone willing to write a SIP proposal?
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