求star

① 驼峰 => 下划线#

/**
 * @desc 驼峰 => 下划线
 * @param {String} HumpStr 
 * @returns 下划线命名
 */
const HumpToline = (HumpStr) => {
  // (?<=.) 兼容大驼峰的情况
  return HumpStr.replace(/(?<=.)([A-Z])/g, "_$1").toLowerCase();
};

②下划线 => 驼峰#

/**
 * @desc 下划线 => 驼峰
 * @param {String} LineStr 
 * @returns 驼峰命名
 */
const LineToHump = (LineStr) => {
  return LineStr.replace(/\_(\w)/g, (all, letter) => letter.toUpperCase());
};

③数据对象key的 驼峰 <=> 下划线 相互转换#

/**
 * 数据对象key 驼峰下划线互相转化
 * @param {Object} data 需要转换的对象
 * @param {String} type hump-转驼峰 toLine-转下划线
 */
const HumpLineTransfer = (data, type = 'hump') => {
  let hump = '';
  // 处理对象中的每个key
  const TransferKey = (data) => {
    if (data instanceof Array) {
      data.forEach(item => TransferKey(item));
    } else if (data instanceof Object) {
      for (const key in data) {
        hump = type === 'hump' ? LineToHump(key) : HumpToLine(key);
        data[hump] = data[key];
        if (key !== hump) {
          delete data[key];
        }
        if (data[hump] instanceof Object) {
          HumpLineTransfer(data[hump]);
        }
      }
    } else if (typeof data === 'string') {
      data = type === 'hump' ? LineToHump(data) : HumpToLine(data);
    }
  };
  TransferKey(data);
  return data;
};

④css属性名 <=> 驼峰#

/**
 * css属性名 转 驼峰
 * @param {string} propertyName 
 */
const toHump = (propertyName) => {
  if (propertyName[0] === '-') {
    // 忽略开头的'-'
    propertyName = propertyName.substring(1, propertyName.length);
  }
  return propertyName.replace(/-(\w)/g, (all, letter) => letter.toUpperCase());
};
console.log(toHump('-webkit-line-clamp')); // webkitLineClamp
console.log(toHump('font-size')); // fontSize

/**
 * 驼峰 转 Css属性名
 * @param {string} sName 
 */
const toPropertyName = (sName) => {
  return sName.replace(/([A-Z])/g, "-$1").toLowerCase();
};
console.log(toHump('webkitLineClamp')); // -webkit-line-clamp
console.log(toHump('fontSize')); // font-size