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How to update only one field using Entity Framework?
...u are updating: if (db.Entry(user).Property(x => x.Password).GetValidationErrors().Count == 0)
– Ziul
Aug 27 '15 at 23:28
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How to use multiple AWS Accounts from the command line?
I've got two different apps that I am hosting (well the second one is about to go up) on Amazon EC2.
7 Answers
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Find the index of a dict within a list, by matching the dict's value
...ex = next((index for (index, d) in enumerate(lst) if d["name"] == "Tom"), None)
# 1
If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) time. An idea:
def build_dict(seq, key):
return dict((d[key], dict(d, index=...
Principles for Modeling CouchDB Documents
... at which to split up documents is where there might be conflicts (as mentioned earlier). You should never keep massively "tangled" documents together in a single document as you'll get a single revision path for completely unrelated updates (comment addition adding a revision to the entire site doc...
Why do we need break after case statements?
...s bad style to "fall through" and have multiple blocks of code execute for one case, but there may be uses for it in some situations.
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What is the current state of the art in HTML canvas JavaScript libraries and frameworks? [closed]
..., check out:
Demos (simple & complex, with code to show how they're done)
Fabric.js presentation at FalsyValues (and another one at BK.js)
Wiki on github (including FAQ)
Documentation
Google Group (ask any question there)
Fabric.js on twitter (or short questions via twitter)
Introduction to Fa...
release Selenium chromedriver.exe from memory
...river.exe from memory (I'm on Windows 7). However after each run there is one chromedriver.exe instance remain in the memory. I hope there is a way I can write something in python to kill the chromedriver.exe process. Obviously browser.close() doesn't do the work. Thanks.
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Check if a variable is a string in JavaScript
...to use and easier to read.
Either function will handle the case DRAX mentioned... that is, they both check if (A) the variable is a string literal or (B) it's an instance of the String object. In either case, these functions correctly identify the value as being a string.
lodash / Underscore.js
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What are OLTP and OLAP. What is the difference between them?
...an online store/website, and you want to compute things like
the "total money spent by all users"
"what is the most sold product"
This falls into the analytics/business intelligence domain, and therefore OLAP is probably more suited.
If you think in terms of "It would be nice to know how/what/h...
Java List.add() UnsupportedOperationException
...cts to a List<String> instance but it throws an UnsupportedOperationException .
Does anyone know why?
7 Answers
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