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2017 Jul 31
0
force promises inside lapply
...'evaled' field set to TRUE and the 'value' field set to the
>> result of evaluating 'code' in 'env'.
>>
>> > f <- function(x, force) {
>> if (force) force(x)
>> if (pryr::is_promise(x)) promise_info(x)
>> else "not a promise"
>> }
>> > str(f(log(-1), force=FALSE))
>> List of 4
>> $ code : language log(-1)
>> $ env :<environment: R_GlobalEnv>
>> $ evaled: logi FALSE
&...