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How to parse a JSON string into JsonNode in Jackson?
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377
A slight variation on Richards answer but readTree can take a string so you can simplify it to...
Replace specific characters within strings
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With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", "e18947")
group
[1] "12357e" "12575e" "197e18" "e18947"
gsub("e", "", group)
[1] "12357" "12575" "19718" "18947"
What gsub does here is to replace each occurrence of "e" with an empty string "".
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How to access array elements in a Django template?
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311
Remember that the dot notation in a Django template is used for four different notations in Py...
How do you echo a 4-digit Unicode character in Bash?
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In UTF-8 it's actually 6 digits (or 3 bytes).
$ printf '\xE2\x98\xA0'
☠
To check how it's encoded by the console, use hexdump:
$ printf ☠ | hexdump
0000000 98e2 00a0
0000003
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RegEx: Smallest possible match or nongreedy match
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3 Answers
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form_for but to post to a different action
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answered Mar 16 '11 at 2:43
AustinAustin
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How to show and update echo on same line
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203
Well I did not read correctly the man echo page for this.
echo had 2 options that could do this...
Python: Select subset from list based on index set
...irst option is equivalent to itertools.compress available since Python 2.7/3.1. See @Gary Kerr's answer.
property_asel = list(itertools.compress(property_a, good_objects))
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Format an Integer using Java String Format
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3 Answers
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Git fast forward VS no fast forward merge
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312
The --no-ff option is useful when you want to have a clear notion of your feature branch. So e...