const tools = {} //存储cookie tools.setCookie = (name, value) => { var Days = 30; /* 设置cookie保存时间 */ var exp = new Date(); exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000); document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString(); } //获取cookie tools.getCookie = name => { var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)"); if (arr = document.cookie.match(reg)) { return unescape(arr[2]); } else { /* 如果没有参数,那么就获取本域下的所有cookie */ return document.cookie; } } tools.delObjKey = (obj, key) => { if (obj.hasOwnProperty(key)) { delete obj[key] } } tools.deepCopy = (obj) => { let temp = obj.constructor === Array ? [] : {} for (let val in obj) { temp[val] = typeof obj[val] == 'object' ? tools.deepCopy(obj[val]) : obj[val] } return temp } //判断watch监听的值是否相同 tools.isSimilarly = (newValue, oldValue) => { if(typeof newValue === typeof oldValue){ if(newValue === oldValue){ return true } else { let flag = false try { Object.keys(newValue).forEach((item, index, arr) => { if(oldValue.hasOwnProperty(item) && newValue[item] === oldValue[item]){ if(index == arr.length-1){ flag = true } } else { throw new Error() } }) } catch (error) { return false } return flag } } else { return false } } export default tools