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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?
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41
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I'll co...
What does the Reflect object do in JavaScript?
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answered Aug 30 '14 at 19:27
GitaarLABGitaarLAB
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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
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Here's...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
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4 Answers
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Should methods that throw RuntimeException indicate it in method signature?
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answered May 5 '09 at 13:24
RobinRobin
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REST API Token-based Authentication
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94
Let me seperate up everything and solve approach each problem in isolation:
Authentication
For...
Split delimited strings in a column and insert as new rows [duplicate]
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df <- read.table(textConnection("1|a,b,c\n2|a,c\n3|b,d\n4|e,f"), header = F, sep = "|", stringsAsFactors = F)
df
## V1 V2
## 1 1 a,b,c
## 2 2 a,c
## 3 3 b,d
## 4 4 e,f
s <- strsplit(df$V2, split = ",")
data.frame(V1 = rep(df$V1, sapply(s, length)), V2 = unlist(...
Concatenating Files And Insert New Line In Between Files
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124
You can do:
for f in *.txt; do (cat "${f}"; echo) >> finalfile.txt; done
Make sure the ...
Why wasn't PyPy included in standard Python?
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edited Apr 17 '15 at 4:38
answered Oct 12 '12 at 21:35
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Checking if a key exists in a JS object
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edited Dec 5 '14 at 15:30
answered Jun 15 '13 at 18:10
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