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Generating Random Passwords
...the generated password (e.g. digits only, only uppercase or only lowercase etc.)
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B-Tree vs Hash Table
...lso tree algorithms are usually easier to maintain, grow with data, scale, etc.
Hash indexes work with pre-defined hash sizes, so you end up with some "buckets" where the objects are stored in. These objects are looped over again to really find the right one inside this partition.
So if you have sma...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
...ave suggested very good solutions but you have to do it manually vi editor etc. Instead you can run this command via your Mac Terminal and you will be good to go :
find /Applications/IntelliJ*/*Contents/*Info.plist -exec sed -i -e 's/string>1.6/string>1.7/' {} \;
Few optional tips:
If ...
How to convert a data frame column to numeric type?
...ry(lubridate)
# Recreate data that needs converted to numeric, date-time, etc
data_df
#> # A tibble: 5 × 9
#> TIMESTAMP SYMBOL EX PRICE SIZE COND BID BIDSIZ OFR
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr>...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
... ever copy that script to a platform with a Unix base, such as Linux, Mac, etc).
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Rails: confused about syntax for passing locals to partials
...ike you said. You can also do in-code search and it has built in terminal, etc. Caution - its a pretty big file
– sethvargo
Dec 9 '10 at 20:22
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...general) across a vast array of environments, compilers, threading models, etc. When its my choice, I choose boost.
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Insert a commit before the root commit in Git?
...ids touching the working copy or the index or which branch is checked out, etc.
Create a tree object for an empty directory:
tree=`git hash-object -wt tree --stdin < /dev/null`
Wrap a commit around it:
commit=`git commit-tree -m 'root commit' $tree`
Create a reference to it:
git branch new...
Getters \ setters for dummies
... 456, _c : 789,
getA : function(){ return this._a; },
getB : ..., getC : ..., setA : ..., setB : ..., setC : ...
};
For the above examples, the internal property names are abstracted with an underscore in order to discourage users from simply doing foo.bar vs. foo.get( 'bar' ) and getting ...
Why does Clojure have “keywords” in addition to “symbols”?
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It seems keywords are more useful as keys in hashmaps etc as they don't change once evaluated: (eval (eval ':a)) vs (eval (eval ''a)). Are there other advantages? Performance wise, they are identical?
– kristianlm
Aug 3 '12 at 19:56
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