remove NULL entries from list

remove NULL entries from list

Usage

rmNULL(x, nullValue = NULL, ...)

Arguments

x

list or other object which may contain NULL.

nullValue

character optional replacement value, default NULL, which causes the entry to be removed.

...

additional arguments are ignored.

Value

list with NULL entries either removed, or replaced with nullValue. This function is typically called so it removed list elements which are NULL, resulting in a list that contains non-NULL entries. This function can also be useful when NULL values should be changed to something else, perhaps a character value "NULL" to be used as a label.

Details

This function is a simple helper function to remove NULL from a list, optionally replacing it with another value

See also

Other jam practical functions: breakDensity(), call_fn_ellipsis(), checkLightMode(), check_pkg_installed(), colNum2excelName(), color_dither(), exp2signed(), getAxisLabel(), isFALSEV(), isTRUEV(), jargs(), kable_coloring(), lldf(), log2signed(), middle(), minorLogTicks(), newestFile(), printDebug(), reload_rmarkdown_cache(), renameColumn(), rmInfinite(), rmNA(), rmNAs(), setPrompt()

Examples

x <- list(A=1:6, B=NULL, C=letters[11:16]);
rmNULL(x)
#> $A
#> [1] 1 2 3 4 5 6
#> 
#> $C
#> [1] "k" "l" "m" "n" "o" "p"
#> 
rmNULL(x, nullValue=NA)
#> $A
#> [1] 1 2 3 4 5 6
#> 
#> $B
#> [1] NA
#> 
#> $C
#> [1] "k" "l" "m" "n" "o" "p"
#>