| /** |
| * 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; |