learning-system-mobile/utils/tools.js

// 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: '外部连接',
	60: '作业',
	61: '考试',
	62: '评估',
	90: '其它',
};

/**
 * 获取课程内容的类型名称
 * @param {Object} type
 */
export function getContentType(type) {
	let name = contentTypeMaps[type];
	return name;
}

/**
 * 获取课程类型的名称 10微课，21在线课(直播)；20:在线课( 录播)；30:面授课；40:混合式，
 * @param {Object} type
 */
export function getCourseType(type) {
	const maps = {
		10: '录播课',
		21: '直播课',
		20: '录播课',
		30: '面授课',
		40: '混合式',
	};
	return maps[type];
}

/**
 * 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;
}

/**
 * 格式化日期,转化为 yyyy-MM-dd HH:mm:ss 格式
 * @param {Object} date
 */
export function formatDate(date) {
	if (date == null || date == '') {
		return;
	}
	var year = new Date(Number(date)).getFullYear(),
		month = new Date(Number(date)).getMonth() + 1, //月份是从0开始的
		day = new Date(Number(date)).getDate(),
		hour = new Date(Number(date)).getHours(),
		min = new Date(Number(date)).getMinutes(),
		sec = new Date(Number(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 toScore(score) {
	if (!score || score == 0) {
		return '未评';
	}
	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';
	}
}

/**
 * 数字转化为字母
 * @param {Object} x
 */
export function numberToLetter(x) {
	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 getQuestionType(type) {
	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) {
	let name = '';
	switch (type) {
		case 1:
			name = '单选';
			break;
		case 2:
			name = '多选';
			break;
		case 3:
			name = '判断';
			break;
	}
	return name;
}
/**
 * 上方法没有说明
 * @param {Object} ditem
 */
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;
}

/**
 * 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;
}