pco/app/uview-ui/libs/function/queryParams.js

/**
 * 对象转url参数
 * @param {*} data,对象
 * @param {*} isPrefix,是否自动加上"?"
 */
function queryParams(data = {}, isPrefix = true, arrayFormat = 'brackets') {
    let prefix = isPrefix ? '?' : ''
    let _result = []
    if (['indices', 'brackets', 'repeat', 'comma'].indexOf(arrayFormat) == -1) arrayFormat = 'brackets';
    for (let key in data) {
        let value = data[key]
        // 去掉为空的参数
        if (['', undefined, null].indexOf(value) >= 0) {
            continue;
        }
        // 如果值为数组，另行处理
        if (value.constructor === Array) {
            // e.g. {ids: [1, 2, 3]}
            switch (arrayFormat) {
                case 'indices':
                    // 结果: ids[0]=1&ids[1]=2&ids[2]=3
                    for (let i = 0; i < value.length; i++) {
                        _result.push(key + '[' + i + ']=' + value[i])
                    }
                    break;
                case 'brackets':
                    // 结果: ids[]=1&ids[]=2&ids[]=3
                    value.forEach(_value => {
                        _result.push(key + '[]=' + _value)
                    })
                    break;
                case 'repeat':
                    // 结果: ids=1&ids=2&ids=3
                    value.forEach(_value => {
                        _result.push(key + '=' + _value)
                    })
                    break;
                case 'comma':
                    // 结果: ids=1,2,3
                    let commaStr = "";
                    value.forEach(_value => {
                        commaStr += (commaStr ? "," : "") + _value;
                    })
                    _result.push(key + '=' + commaStr)
                    break;
                default:
                    value.forEach(_value => {
                        _result.push(key + '[]=' + _value)
                    })
            }
        } else {
            _result.push(key + '=' + value)
        }
    }
    return _result.length ? prefix + _result.join('&') : ''
}

export default queryParams;