zent/es/utils/uniq.js

一套前端设计语言和基于React的实现

export default function uniq(array, iteratee) {
    var exists = new Set();
    var ret = [];
    for (var i = 0; i < array.length; i++) {
        var rawValue = array[i];
        var val = void 0;
        if (typeof iteratee === 'function') {
            val = iteratee(rawValue);
        }
        else if (iteratee === undefined) {
            val = rawValue;
        }
        else {
            val = rawValue[iteratee];
        }
        if (!exists.has(val)) {
            ret.push(rawValue);
            exists.add(val);
        }
    }
    return ret;
}