learning-system-portal/src/utils/tools.js

/**
 * 对象复制
 */
export const deepCopy = (obj) => {
    return JSON.parse(JSON.stringify(obj));
};

/**文件的基础路径*/
export function getFileBaseUrl() {
  let protocol=window.location.protocol;
  let configPath=process.env.VUE_APP_FILE_BASE_URL;
  let baseUrl='';
  if(configPath.startsWith('http')){
    baseUrl = configPath;
  }else{
    let domain = window.location.host;
    baseUrl = protocol+'//'+domain+configPath;
  }
  return baseUrl;
}

/**
 * 获取url协议
 * @param {Object} type
 */
export function getUrlPre(type) {
  const isHttps='https:'==document.location.prototype ? true:false;
	let isUrl='https';
	if(isHttps){
		isUrl='https';
	}else{
		isUrl='http';
	}
    return isUrl;
}

// 类型过滤
const contentTypeMaps = {
    10: '视频',
    20: '音频',
    30: '图片',
    40: '文档',
    41: '图文',
    50: 'scrom包',
    52: '外链',
    60: '作业',
    61: '考试',
    62: '评估',
    90: '其它',
};
export function getType(type) {
    let name =  contentTypeMaps[type];
    return name;
}

/**
 * 根据文件类型后续不带点的。比如 mp4 转化为对应的资源数字
 */
export function toContentType(fileType) {
  let docTypes=["pdf","doc","xls", "ppt","docx", "xlsx", "pptx"];
  let type = null;
   // ["doc", "xls", "ppt","docx", "xlsx", "pptx","png","txt", "pdf","jpg","gif","bmp","mp4","mp3"]
   if (fileType === "mp4") {
     type = 10;
   } else if (fileType === "mp3") {
     type = 20;
   } else if (fileType === "jpg" ||fileType === "png" ||fileType === "gif") {
     type = 30;
   } else if (docTypes.indexOf(fileType)>-1){
     type = 40;
   } else {
     type = 90;
   }
   return type;
}

// 10微课，21在线课(直播)；20:在线课( 录播)；30:面授课；40:混合式，

// export function courseType(type) {
//     const maps = {
//         10: '微课',
//         21: '在线课(直播)',
//         20: '在线课(录播)',
//         30: '面授课',
//         40: '混合式',
//     };
//     return maps[type];
// }
export function courseType(type) {
    const maps = {
        10: '录播课',
        21: '在线课(直播)',
        20: '录播课',
        30: '线下课',
        40: '学习项目',
    };
    return maps[type];
}

/**
 * 把日期格式化为显示时间，yyyy-MM-dd HH:mm:ss
 * @param {Object} date
 */
export function formatDate(date){
  	var year = date.getFullYear(),
        month = date.getMonth() + 1,//月份是从0开始的
        day = date.getDate(),
        hour = date.getHours(),
        min = date.getMinutes(),
        sec = date.getSeconds();
    if(month<10){month='0'+month}
    if(day<10){day='0'+day}
    if(hour<10){hour='0'+hour}
    if(min<10){min='0'+min}
    if(sec<10){sec='0'+sec}
  	var newTime = year + '-' +
  				month + '-' +
  				day + ' ' +
  				hour + ':' +
  				min + ':' +
  				sec;
  	return newTime;

}
export function numberToLetter(x){ //此方法和移到utils中去
    let s = "";
    while (x > 0) {
      let m = x % 26;
      m = m === 0 ? (m = 26) : m;
      s = String.fromCharCode(96 + parseInt(m)) + s;
      x = (x - m) / 26;
    }
    return s.toUpperCase();
  }

export function testType(type) { //此方法移到tools中
    let name = '';
   switch (type) {
     case 101:
        name = '单选';
       break;
        case 102:
        name = '多选';
       break;
        case 103:
        name = '判断';
       break;
   }
   return name;
  }
  export function examType(type) { //此方法移到tools中
    let name = '';
   switch (type) {
     case 1:
        name = '单选';
       break;
        case 2:
        name = '多选';
       break;
        case 3:
        name = '判断';
       break;
   }
   return name;
  }
  export function correctJudgment(ditem) {
    let judgment = false;
    if(ditem.type == 101 || ditem.type == 103) {
       ditem.options.forEach(item=>{
         if(item.answer){
           if(item.id == ditem.userAnswer) {
              judgment = true;
           } else{
             judgment = false;
           }
         }
       })
    } else {
         ditem.options.forEach(item=>{
         if(item.answer == item.isCheck){
              judgment = true;

         }else{
             judgment = false;
           }
       })
    }
    return judgment;
  }
  export function toScore(score) {
    if (!score) {
        return '0';
    }
    if((''+score).indexOf('.')>-1){
      return score.toFixed(1);
    }else{
      return score+'.0';
    }
   }
   export function toScoreTow(score) {// 返回两位小数
    if (!score) {
        return '0';
    }
    if((''+score).indexOf('.')>-1){
      return score.toFixed(2);
    }else{
      return score+'.00';
    }
   }
   /**
    * 数组互换位置
    * @param {array} arr 数组
    * @param {number} index1 添加项目的位置
    * @param {number} index2 删除项目的位置
    * index1和index2分别是两个数组的索引值，即是两个要交换元素位置的索引值，如1，5就是数组中下标为1和5的两个元素交换位置
    */
   export function swapArray(arr, index1, index2) {
     arr[index1] = arr.splice(index2, 1, arr[index1])[0];
     return arr;
  }

  /**
   * 头像文字
   * @param {*} text
   * @returns
   */
  export function userAvatarText(text){
    if(text){
      let len=text.length;
      if(len>2){
        text=text.substring(len-2);
      }
    }
    return text;
  }