zent/es/utils/union.js

一套前端设计语言和基于React的实现

export default function union() {
    var arrays = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        arrays[_i] = arguments[_i];
    }
    var exists = new Set();
    var ret = [];
    for (var i = 0; i < arrays.length; i++) {
        var arr = arrays[i];
        if (arr === null || arr === undefined) {
            continue;
        }
        for (var j = 0; j < arr.length; j++) {
            var elem = arr[j];
            if (!exists.has(elem)) {
                ret.push(elem);
                exists.add(elem);
            }
        }
    }
    return ret;
}