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joplin/packages/lib/array.ts

17 lines
395 B
TypeScript

export function shuffle<T>(array: T[]): T[] {
array = array.slice();
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
const temp = array[i];
array[i] = array[j];
array[j] = temp;
}
return array;
}
export function unique<T>(array: T[]): T[] {
return array.filter(function(elem, index, self) {
return index === self.indexOf(elem);
});
}