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Oct 25th, 2016
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  1. bash-4.3$ jq '.[""]*2' <<< '{"":3.14159265358979}'
  2. 6.28318530717958
  3.  
  4. bash-4.3$ ruby -rjson -ne 'p JSON.parse($_)[""]*2' <<< '{"":3.14159265358979}'
  5. 6.28318530717958
  6.  
  7. bash-4.3$ php -r 'var_dump(json_decode(fgets(STDIN),true)[""]*2);' <<< '{"":3.14159265358979}'
  8. float(6.2831853071796)
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