react-native-flip
Version:
15 lines (14 loc) • 326 B
JavaScript
function addIfNew(list, value) {
if (list.indexOf(value) === -1) {
list.push(value);
}
}
export default function addNewValuesOnly(list, values) {
if (Array.isArray(values)) {
for (var i = 0, len = values.length; i < len; ++i) {
addIfNew(list, values[i]);
}
} else {
addIfNew(list, values);
}
}