im/util/music/BaseUtil.js

/**
 * 秒数转时长  1 → 00:01
 */
export function secondToDuration(second, fixed = 0) {
	var sec = (second % 60).toFixed(fixed);
	var min = Math.floor(second / 60);
	if (min.toString().length < 2) {
		min = '0' + min;
	}
	if (sec < 10) {
		sec = '0' + sec;
	}
	return min + ':' + sec
}

/**
 * 判断两个对象是否相等
 * @param {Object} o1
 * @param {Object} o2
 */
export function objEquals(o1,o2){
	if(o1 && o2){
		return o1.platform == o2.platform && o1.id == o2.id;
	}else{
		return false;
	}
}

export function isExist(list,obj){
	for (let itemIndex in list) {
		const item = list[itemIndex];
		if (objEquals(item,obj)) {
			return true;
		}
	}
	return false;
}

export function findIndex(list,obj){
	for (let itemIndex in list) {
		const item = list[itemIndex];
		if (objEquals(item,obj)) {
			return parseInt(itemIndex);
		}
	}
	return -1;
}

export function findObj(list,obj){
	const index = findIndex(list,obj);
	if(inde != -1){
		return list[index];
	}
	return null;
}

export function isFind(list,obj){
	const index = findIndex(list,obj);
	if(index != -1){
		return true;
	}
	return false;
}

export function showToast(title,duration = 2000,icon="none",position="bottom"){
	uni.showToast({
		title,
		icon,
		duration,
		position
	});
}
/**
 * 格式化歌词
 * @param {String} lrcStr 歌词文本
 * @param {String} mode 格式 object 对象模式，array 数组模式
 */
export function formatLrc(lrcStr,mode = 'object'){
	const reg = /\[\d*:\d*(\.|:)\d*]/g
	const timeReg = /\[(\d{2,})\:(\d{2})(?:\.(\d{1,3}))?\]/g; // eslint-disable-line no-useless-escape
	let timeResult = [];
	let index = 0;
	if(mode == 'object'){
		let lrcs = {};
		lrcStr.split("\n").forEach(item => {
			const timeRegAry = item.match(reg);
			if (timeRegAry) {
				const time = timeRegAry[0];
				const min = parseInt(time.match(/\[\d*/i).toString().slice(1))
				const sec = parseInt(time.match(/\:\d*/i).toString().slice(1))
				const second = min * 60 + sec
				const content = item.replace(timeRegAry, "")
				lrcs[second] = {
					time,
					content
				};
			}
		})
		return lrcs;
	}else{
		let lrcs = [];
		lrcStr.split("\n").forEach(item => {
			const timeRegAry = item.match(reg);
			if (timeRegAry) {
				const time = timeRegAry[0];
				const min = parseInt(time.match(/\[\d*/i).toString().slice(1))
				const sec = parseInt(time.match(/\:\d*/i).toString().slice(1))
				const second = min * 60 + sec
				const content = item.replace(timeRegAry, "")
				 lrcs.push({
					second,
					time,
					content
				});
			}
		})
		return lrcs;
	}
	
}