R: Backport of isFALSE for R < 3.4.2

isFALSE {backports} | R Documentation

## Backport of isFALSE for R < 3.4.2

### Description

See the original description in `base::isFALSE`.

### Usage

    isFALSE(x)

### Examples

    # get function from namespace instead of possibly getting
    # implementation shipped with recent R versions:
    bp_isFALSE = getFromNamespace("isFALSE", "backports")

    bp_isFALSE(FALSE)
    bp_isFALSE(iris)

[Package backports version 1.1.2 Index]