[UnderScore] Update definitions of findIndex/findLastIndex #9711
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As predicates of
findIndex
/findLastIndex
are transformed by_.iteratee
, they can take Object as a predicates.And
findIndex
/findLastIndex
can't return __Chain. I changed it to __ChainSingle.http://underscorejs.org/#iteratee
http://underscorejs.org/#findIndex