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validation custom message for rails 3
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edited Mar 4 '15 at 3:20
Andrew Hendrie
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Getting the return value of Javascript code in Selenium
... wd.get("http://localhost/foo/bar")
>>> wd.execute_script("return 5")
5
>>> wd.execute_script("return true")
True
>>> wd.execute_script("return {foo: 'bar'}")
{u'foo': u'bar'}
>>> wd.execute_script("return foobar()")
u'eli'
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How do I reference a specific issue comment on github?
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335
You can click on the date in the header of the comment to get a URL to the comment
For exampl...
For each row return the column name of the largest value
...ples using sample reproducible):
DF <- data.frame(V1=c(2,8,1),V2=c(7,3,5),V3=c(9,6,4))
colnames(DF)[apply(DF,1,which.max)]
[1] "V3" "V1" "V2"
A faster solution than using apply might be max.col:
colnames(DF)[max.col(DF,ties.method="first")]
#[1] "V3" "V1" "V2"
...where ties.method can be a...
In Maven 2, how do I know from which dependency comes a transitive dependency?
...O] org.apache.maven.plugins:maven-dependency-plugin:maven-plugin:2.0-alpha-5-SNAPSHOT
[INFO] \- org.apache.maven.doxia:doxia-site-renderer:jar:1.0-alpha-8:compile
[INFO] \- org.codehaus.plexus:plexus-velocity:jar:1.1.3:compile
[INFO] \- velocity:velocity:jar:1.4:compile
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How can I change a secret Gist to public?
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VonCVonC
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Excluding directories in os.walk
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unutbuunutbu
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How to change MySQL column definition?
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edited May 26 '16 at 16:45
Benjamin W.
29.9k1515 gold badges6767 silver badges7373 bronze badges
answer...
Tricky Google interview question
...; v(n);
v[0] = 1;
int i2 = 0; // Index for 2
int i5 = 0; // Index for 5
int x2 = 2 * v[i2]; // Next two candidates
int x5 = 5 * v[i5];
for (int i = 1; i != n; ++i)
{
int m = std::min(x2, x5);
std::cout << m << " "...
MySQL Select minimum/maximum among two (or more) given values
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WHERE B.x = A.x
Both are described here http://dev.mysql.com/doc/refman/5.0/en/comparison-operators.html
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