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Replacement for “rename” in dplyr
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dplyr version 0.3 added a new rename() function that works just like plyr::rename().
df <- rename(df, new_name = old_name)
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MySQL ON vs USING?
...lid to just say film_id since that would make for an ambiguity:
ERROR 1052 (23000): Column 'film_id' in field list is ambiguous
As for select *, the joining column appears in the result set twice with ON while it appears only once with USING:
mysql> create table t(i int);insert t select 1...
Printing everything except the first field with awk
...works but it will leave a leading space: awk '{first = $1; $1 = ""; print $0, first; }'
You can also find the number of columns in NF and use that in a loop.
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App Inventor 2 Enhance 拓展：界面增强扩展（颜色渐变、边距、圆角、透明...
...itialize() {
KevinkunEnhance1.SetBgColor(垂直布局_卡片, "#FAFAFA", 0)
KevinkunEnhance1.SetRoundCorner(垂直布局_卡片, 16)
KevinkunEnhance1.SetBorder(垂直布局_卡片, 1, "#DDDDDD")
KevinkunEnhance1.SetPadding(垂直布局_卡片, 16)
KevinkunEnhance1.SetElevation(垂直布局...
In Go's http package, how do I get the query string on a POST request?
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answered Mar 14 '13 at 12:03
mnamna
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How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
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agilob
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answered Jul 26 '10 at 9:29
Noel MNoel M
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Mockito verify order / sequence of method calls
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edited Apr 11 '16 at 2:40
Dennis C
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What is the idiomatic Go equivalent of C's ternary operator?
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10 Answers
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p vs puts in Ruby
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answered Aug 10 '09 at 14:52
sepp2ksepp2k
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Command to remove all npm modules globally?
...a working Windows version, see Ollie Bennett's Answer.
npm ls -gp --depth=0 | awk -F/ '/node_modules/ && !/\/npm$/ {print $NF}' | xargs npm -g rm
Here is how it works:
npm ls -gp --depth=0 lists all global top level modules (see the cli documentation for ls)
awk -F/ '/node_modules/ &am...