常用工具集（utils.js）

export const isMobile = (s) => {
	return /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/.test(s)
}
export const isTelephone = (s) => {
	return /^1[0-9]{10}$/.test(s)
}
export const isEmail = (s) => {
	return /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(s);
}
export const formatBytes = (bytes, decimals = 2) => {
	if (bytes === 0) return '0 B'; //Bytes
	const k = 1024;
	const dm = decimals < 0 ? 0 : decimals;
	const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
	const i = Math.floor(Math.log(bytes) / Math.log(k));
	return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
}
export const getCookie = (name) => {
	let reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
	let arr = document.cookie.match(reg)
	if (arr) {
		return unescape(arr[2]);
	} else {
		return '';
	}
}
export const dateTime = () => {
    var date = new Date();
    var seperator1 = "-";
    var seperator2 = ":";
    var month = date.getMonth() + 1;
    var strDate = date.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate
        + " " + date.getHours() + seperator2 + date.getMinutes()
        + seperator2 + date.getSeconds();
    return currentdate;
}

export const dataTimeFormat = function (datetime, fmt) {
	let o = {
		"M+": datetime.getMonth() + 1,                 //月份 
		"d+": datetime.getDate(),                    //日 
		"h+": datetime.getHours(),                   //小时 
		"m+": datetime.getMinutes(),                 //分 
		"s+": datetime.getSeconds(),                 //秒 
		"q+": Math.floor((datetime.getMonth() + 3) / 3), //季度 
		"S": datetime.getMilliseconds()             //毫秒 
	};
	if (/(y+)/.test(fmt)) {
		fmt = fmt.replace(RegExp.$1, (datetime.getFullYear() + "").substr(4 - RegExp.$1.length));
	}
	for (let k in o) {
		if (new RegExp("(" + k + ")").test(fmt)) {
			fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
		}
	}
	return fmt;
}

// 判断是否是纯粹对象
const isPlainObject = obj => {
	return Object.prototype.toString.call(obj) === '[object Object]'
}

export const formatBytes = (bytes, decimals = 2) => {
	if (bytes === 0) return '0 B'; //Bytes
	const k = 1024;
	const dm = decimals < 0 ? 0 : decimals;
	const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
	const i = Math.floor(Math.log(bytes) / Math.log(k));
	return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
}

export const getCookie = (name) => {
	let reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
	let arr = document.cookie.match(reg)
	if (arr) {
		return unescape(arr[2]);
	} else {
		return '';
	}
}

export const assignDeep = function () {
	const args = Array.from(arguments);
	if (args.length < 2) return args[0];
	let result = args[0];
	args.shift();
	args.forEach(item => {
		if (isPlainObject(item)) {
			if (!isPlainObject(result)) result = {}
			for (let key in item) {
				if (result[key] && isPlainObject(item[key])) {
					result[key] = assignDeep(result[key], item[key])
				} else {
					result[key] = item[key]
				}
			}
		}
		else if (item instanceof Array) {
			if (!(result instanceof Array)) result = []
			item.forEach((arrItem, arrIndex) => {
				if (isPlainObject(arrItem)) {
					result[arrIndex] = assignDeep(result[arrIndex])
				} else {
					result[arrIndex] = arrItem
				}
			})
		}
	})
	return result;
}


export const exportToFile = (filename, data) => {
	// let urlObject = window.URL || window.webkitURL || window;
	// let export_blob = new Blob([data]);
	// let save_link = document.createElementNS("http://www.w3.org/1999/xhtml", "a")
	// save_link.href = urlObject.createObjectURL(export_blob);
	// save_link.download = name;

	// let ev = document.createEvent("MouseEvents");
	// ev.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
	// save_link.dispatchEvent(ev);
	if (window.navigator.msSaveOrOpenBlob) {
		// 兼容IE10
		navigator.msSaveBlob(new Blob([data]), filename ? filename : `xxx`);
	} else {
		let url = window.URL.createObjectURL(
			new Blob([data], { type: "application/octet-stream" })
		);
		let link = document.createElement("a");
		link.style.display = "none";
		link.href = url;
		link.setAttribute("download", filename ? filename : `xxx`);
		document.body.appendChild(link);
		link.click();
		link.remove();
	}
}

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session.js

export const getItem = (key) => {
    let data = window.sessionStorage.getItem(key)
    if (data) {
        return JSON.parse(data)
    } else {
        return false
    }
};
export const setItem = (key, data) => {
    if (data) {
        window.sessionStorage.setItem(key, JSON.stringify(data))
        return true
    } else {
        return true
    }
};
export const removeItem = (key) => {
    window.sessionStorage.removeItem(key)
    return true
};

export const updateItem = (key, obj) => {
    let data = window.sessionStorage.getItem(key)
    if (data) {
        data = JSON.parse(data);
        window.sessionStorage.setItem(key, JSON.stringify({ ...data, ...obj }))
        return true
    } else {
        return false
    }
};
export const clear = () => {
    window.sessionStorage.clear()
    return true
};

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mitt.js

import mitt from 'mitt';
export default mitt();

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#Tools

上次更新: 2024/01/30, 00:35:17

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