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Why are there two ways to unstage a file in Git?
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git rm --cached is used to remove a file from the index. In the case where the file is already in the repo, git rm --cached will remove the file from the index, leaving it in the working directory and a commit will now remove it from the repo as well. Basically, after the co...
What online brokers offer APIs? [closed]
So I'm getting really sick of E*TRADE and, being a developer, would love to find an online broker that offers an API. It would be great to be able to write my own trading tools, and maybe even modify existing ones.
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Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
...ava SE Downloads": http://www.oracle.com/technetwork/java/javase/downloads/index.html
Click "JDK Download" and visit "Java SE Development Kit 7 Downloads": http://www.oracle.com/technetwork/java/javase/downloads/java-se-jdk-7-download-432154.html (note that following the link from step #1 will take ...
How to form tuple column from two columns in Pandas
...)) but keep getting an error: Length of values does not match length of index any advice?
– seeiespi
Apr 16 '18 at 22:53
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How can I return the current action in an ASP.NET MVC view?
...ext.Controller.GetType().Name , but how do I get the current action (e.g. Index , Show etc.)?
11 Answers
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How to check if an array field contains a unique value or another array in MongoDB?
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Is there any INDEXING we can do on array's to stop duplicate? If yes, please guide how.
– Hitesh Joshi
Sep 29 '12 at 8:56
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How is this fibonacci-function memoized?
... passed in and this is easy to verify. The list is a constant that is then indexed into. It is, of course, a constant that is lazily evaluated, so your program does not try to get the whole (infinite) list immediately. Since it's a constant, it can be shared across the function calls.
It's memoized...
What algorithm gives suggestions in a spell checker?
...ical hash function.
Insert all of your dictionary words into an auxiliary index (hash table) using this special hash function. The buckets in this table will have longish collision lists because the hash function is "bad", but those collision lists are essentially pre-computed suggestions.
Now, w...
MySQL, better to insert NULL or empty string?
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If you are using multiple columns in a unique index and at least one of these columns are mandatory (i.e. a required form field), if you set the other columns in the index to NULL you may end up with duplicated rows. That's because NULL values are ignored in unique colum...
Error installing libv8: ERROR: Failed to build gem native extension
...rrupted. I remove the whole cache folder and re-run bundle install --full-index --deployment --without development test postgres aws. Works.
– Nick Dong
Mar 2 '16 at 11:11
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