Function unique

packages/miniprogram-render/src/tree/query-selector.js:148–159

* 数组去重

(list)

 * 数组去重
 */
function unique(list) {
    for (let i = 0; i < list.length; i++) {
        const a = list[i]

        for (let j = i + 1; j < list.length; j++) {
            const b = list[j]
            if (a === b) list.splice(j, 1)
        }
    }

    return list
}

/**
 * 将节点按照文档顺序排列