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Use dynamic variable names in JavaScript
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a = 'varname';
str = a+' = '+'123';
eval(str)
alert(varname);
Try this...
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How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
...alues of 12abc will return abc, value of 1abc will return abc, value of abc123 will return "Not Matched" because the digits were not at the start of the string.
Private Sub simpleRegex()
Dim strPattern As String: strPattern = "^[0-9]{1,2}"
Dim strReplace As String: strReplace = ""
Dim r...
How to get an enum value from a string value in Java?
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123
Here's a nifty utility I use:
/**
* A common method for all enums since they can't have anot...
How does Google's Page Speed lossless image compression work?
... answered Dec 5 '12 at 6:19
user123444555621user123444555621
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jQuery Scroll To bottom of the page
... answered Jul 10 '15 at 13:35
f123f123
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Filter dataframe rows if value in column is in a set list of values [duplicate]
...e,
str.contains('pandas', case=False)
would match PANDAS, PanDAs, paNdAs123, and so on.
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Difference between map and collect in Ruby?
...chmark code:
require 'benchmark'
h = { abc: 'hello', 'another_key' => 123, 4567 => 'third' }
a = 1..10
many = 500_000
Benchmark.bm do |b|
GC.start
b.report("hash keys collect") do
many.times do
h.keys.collect(&:to_s)
end
end
GC.start
b.report("hash keys map") ...
How do I rename the extension for a bunch of files?
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123
This worked for me on OSX from .txt to .txt_bak
find . -name '*.txt' -exec sh -c 'mv "$0" "${...
How to convert index of a pandas dataframe into a column?
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df1 = pd.DataFrame({"gi":[232,66,34,43],"ptt":[342,56,662,123]})
p = df1.index.values
df1.insert( 0, column="new",value = p)
df1
new gi ptt
0 0 232 342
1 1 66 56
2 2 34 662
3 3 43 123
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Get last n lines of a file, similar to tail
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123
This may be quicker than yours. Makes no assumptions about line length. Backs through the fi...