function-whitelist
Deprecated: Instead use the function-allowed-list
rule.
Specify a list of allowed functions.
a { transform: scale(1); }
/**            ↑
 * This function */Options
array|string:
["array", "of", "unprefixed", /functions/ or "regex"]|"function"|"/regex/"
If a string is surrounded with "/"
(e.g. "/^rgb/"), it is interpreted as a regular
expression.
Given:
["scale", "rgba", "linear-gradient"]The following patterns are considered violations:
a { transform: rotate(1); }a {
  color: hsla(170, 50%, 45%, 1)
}a {
  background:
    red,
    -webkit-radial-gradient(red, green, blue);
}The following patterns are not considered violations:
a { background: red; }a { transform: scale(1); }a {
  color: rgba(0, 0, 0, 0.5);
}a {
  background:
    red,
    -moz-linear-gradient(45deg, blue, red);
}