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Note that if the content in the target is not valid JSON, decode() returns the string unchanged without warning. JSON Lint is your friend.
If target is a string, a map structure will be returned with "error" as the key with the original string in an array as the value. example { "error" : [ "string" ] } .
extract()
The extract() operator matches the string using a regular expression given as the sole argument and returns the specified capture groups as an array. For example:
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