// 获取当前时间 const currentTime () { var date new Date(); var year date.getFullYear(); //月份从0~11所以1 let month date.getMonth(); console.log(month, month); var currentDateArr [ date.getMonth() 1, date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), ]; //如果格式是MM则需要此步骤如果是M格式则此循环注释掉 for (var i 0; i currentDateArr.length; i) { if (currentDateArr[i] 1 currentDateArr[i] 9) { currentDateArr[i] 0 currentDateArr[i]; } } var currentDate year - currentDateArr[0] - currentDateArr[1] currentDateArr[2] : currentDateArr[3] : currentDateArr[4]; console.log(currentDate, currentDate); }; // 时间戳转化为年月日 const timeFormate (timeStamp) { let year new Date(timeStamp).getFullYear(); let month new Date(timeStamp).getMonth() 1 10 ? 0 (new Date(timeStamp).getMonth() 1) : new Date(timeStamp).getMonth() 1; let date new Date(timeStamp).getDate() 10 ? 0 new Date(timeStamp).getDate() : new Date(timeStamp).getDate(); let hh new Date(timeStamp).getHours() 10 ? 0 new Date(timeStamp).getHours() : new Date(timeStamp).getHours(); let mm new Date(timeStamp).getMinutes() 10 ? 0 new Date(timeStamp).getMinutes() : new Date(timeStamp).getMinutes(); let ss new Date(timeStamp).getSeconds() 10 ? 0 new Date(timeStamp).getSeconds() : new Date(timeStamp).getSeconds(); return year - month - date hh : mm : ss } //时间戳转为几天-几个小时-几分钟-几秒 getTimeLongDisc(timeMS) { if(timeMS0){ return 0秒; } const days timeMS / 1000 / 60 / 60 / 24; const daysRound Math.floor(days); const hours timeMS/ 1000 / 60 / 60 - (24 * daysRound); const hoursRound Math.floor(hours); const minutes timeMS / 1000 /60 - (24 * 60 * daysRound) - (60 * hoursRound); const minutesRound Math.floor(minutes); const seconds timeMS/ 1000 - (24 * 60 * 60 * daysRound) - (60 * 60 * hoursRound) - (60 * minutesRound); const secondsRound Math.floor(seconds); let resultDisc; if(daysRound 0){ resultDiscdaysRound天; if(hoursRound0){ resultDischoursRound时; } }else { if(hoursRound0){ resultDischoursRound时; if(minutesRound0){ resultDiscminutesRound分; } }else { if(minutesRound0){ resultDiscminutesRound分; } resultDiscsecondsRound秒; } } return resultDisc; } // 保留几位小数 export function formatDecimalFraction(num, decimalPlaces) { // 如果是整数保持原状 if (Number.isInteger(num)) { return num.toString(); } else { // 如果是小数根据传入的小数位数保留相应位数 if (typeof decimalPlaces number decimalPlaces 0) { return num.toFixed(decimalPlaces); } else { // 默认保留一位小数 return num.toFixed(1); } } } // 数字添加千分号 export function formatNumber(number) { if (typeof number number) { // 如果是数字类型先转换为字符串 number number.toString(); } else if (typeof number ! string) { // 如果不是数字或字符串类型返回原始值 return number; } // 使用正则表达式添加千分位逗号 return number.replace(/\B(?(\d{3})(?!\d))/g, ,); } //当input框类型为number 值为0时点击input框内容为空 el-input v-modelreportData.reportCount typenumber focusreportCheckFrequencyFunction(reportData.reportCount) / const reportCheckFrequencyFunction () { if (reportData.reportCount 0) { reportData.reportCount } } //判断数组对象里的某一个值是否全部相同 arr.flat().every(item item.type 4) //数组转字符串 arr.join(,) //判断input框里面是否全为空格 if (passward.value.replace(/(^\s*)|(\s*$)/g, ) ) { console.log(未输入或者输入为空格); } else { console.log(输入, userNewSet.password); } //input框不能输入小数点 el-input typenumber inputhandleInput :step1 :min1 v-modelmodelReportData.reportCount / const handleInput (value) { console.log(v,value) if(value.includes(.)){ modelReportData.reportCount parseInt(value) } }; //onkeyupvaluevalue.replace(/[^\d]/g,) 只允许输入数字(整数小数点不能输入) //onkeyupvaluevalue.replace(/^\D (\d (?:.\d{0,2})?). 1) 允许输入小数(两位小数) //onkeyupvaluevalue.replace(/^\D (\d (?:.\d{0,1})?). 1) 允许输入小数(1位小数) //onkeyupvaluevalue.replace(/[ \d]/g,).replace(/ 0{1,}/g,) 开头不能为0且不能输入小数 //在表格中使用input 为空时该值为0 // blurblurNumber(row) const blurNumber(row){ if(!row.unclearCount){ row.unclearCount0 }else{ row.unclearCountrow.unclearCount*1 } } 截取最后一个特殊字符后面的全部内容 字符串.substring(字符串.lastIndexOf(/)1) 判断数组中的某个字段是否全部相同 multipleSelectionList.value.flat().every((item) item.purchaseType 2 css文字过长用...展示 text-overflow: ellipsis; overflow: hidden; white-space: nowrap;后面会继续补充
前端常用方法
// 获取当前时间 const currentTime () { var date new Date(); var year date.getFullYear(); //月份从0~11所以1 let month date.getMonth(); console.log(month, month); var currentDateArr [ date.getMonth() 1, date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), ]; //如果格式是MM则需要此步骤如果是M格式则此循环注释掉 for (var i 0; i currentDateArr.length; i) { if (currentDateArr[i] 1 currentDateArr[i] 9) { currentDateArr[i] 0 currentDateArr[i]; } } var currentDate year - currentDateArr[0] - currentDateArr[1] currentDateArr[2] : currentDateArr[3] : currentDateArr[4]; console.log(currentDate, currentDate); }; // 时间戳转化为年月日 const timeFormate (timeStamp) { let year new Date(timeStamp).getFullYear(); let month new Date(timeStamp).getMonth() 1 10 ? 0 (new Date(timeStamp).getMonth() 1) : new Date(timeStamp).getMonth() 1; let date new Date(timeStamp).getDate() 10 ? 0 new Date(timeStamp).getDate() : new Date(timeStamp).getDate(); let hh new Date(timeStamp).getHours() 10 ? 0 new Date(timeStamp).getHours() : new Date(timeStamp).getHours(); let mm new Date(timeStamp).getMinutes() 10 ? 0 new Date(timeStamp).getMinutes() : new Date(timeStamp).getMinutes(); let ss new Date(timeStamp).getSeconds() 10 ? 0 new Date(timeStamp).getSeconds() : new Date(timeStamp).getSeconds(); return year - month - date hh : mm : ss } //时间戳转为几天-几个小时-几分钟-几秒 getTimeLongDisc(timeMS) { if(timeMS0){ return 0秒; } const days timeMS / 1000 / 60 / 60 / 24; const daysRound Math.floor(days); const hours timeMS/ 1000 / 60 / 60 - (24 * daysRound); const hoursRound Math.floor(hours); const minutes timeMS / 1000 /60 - (24 * 60 * daysRound) - (60 * hoursRound); const minutesRound Math.floor(minutes); const seconds timeMS/ 1000 - (24 * 60 * 60 * daysRound) - (60 * 60 * hoursRound) - (60 * minutesRound); const secondsRound Math.floor(seconds); let resultDisc; if(daysRound 0){ resultDiscdaysRound天; if(hoursRound0){ resultDischoursRound时; } }else { if(hoursRound0){ resultDischoursRound时; if(minutesRound0){ resultDiscminutesRound分; } }else { if(minutesRound0){ resultDiscminutesRound分; } resultDiscsecondsRound秒; } } return resultDisc; } // 保留几位小数 export function formatDecimalFraction(num, decimalPlaces) { // 如果是整数保持原状 if (Number.isInteger(num)) { return num.toString(); } else { // 如果是小数根据传入的小数位数保留相应位数 if (typeof decimalPlaces number decimalPlaces 0) { return num.toFixed(decimalPlaces); } else { // 默认保留一位小数 return num.toFixed(1); } } } // 数字添加千分号 export function formatNumber(number) { if (typeof number number) { // 如果是数字类型先转换为字符串 number number.toString(); } else if (typeof number ! string) { // 如果不是数字或字符串类型返回原始值 return number; } // 使用正则表达式添加千分位逗号 return number.replace(/\B(?(\d{3})(?!\d))/g, ,); } //当input框类型为number 值为0时点击input框内容为空 el-input v-modelreportData.reportCount typenumber focusreportCheckFrequencyFunction(reportData.reportCount) / const reportCheckFrequencyFunction () { if (reportData.reportCount 0) { reportData.reportCount } } //判断数组对象里的某一个值是否全部相同 arr.flat().every(item item.type 4) //数组转字符串 arr.join(,) //判断input框里面是否全为空格 if (passward.value.replace(/(^\s*)|(\s*$)/g, ) ) { console.log(未输入或者输入为空格); } else { console.log(输入, userNewSet.password); } //input框不能输入小数点 el-input typenumber inputhandleInput :step1 :min1 v-modelmodelReportData.reportCount / const handleInput (value) { console.log(v,value) if(value.includes(.)){ modelReportData.reportCount parseInt(value) } }; //onkeyupvaluevalue.replace(/[^\d]/g,) 只允许输入数字(整数小数点不能输入) //onkeyupvaluevalue.replace(/^\D (\d (?:.\d{0,2})?). 1) 允许输入小数(两位小数) //onkeyupvaluevalue.replace(/^\D (\d (?:.\d{0,1})?). 1) 允许输入小数(1位小数) //onkeyupvaluevalue.replace(/[ \d]/g,).replace(/ 0{1,}/g,) 开头不能为0且不能输入小数 //在表格中使用input 为空时该值为0 // blurblurNumber(row) const blurNumber(row){ if(!row.unclearCount){ row.unclearCount0 }else{ row.unclearCountrow.unclearCount*1 } } 截取最后一个特殊字符后面的全部内容 字符串.substring(字符串.lastIndexOf(/)1) 判断数组中的某个字段是否全部相同 multipleSelectionList.value.flat().every((item) item.purchaseType 2 css文字过长用...展示 text-overflow: ellipsis; overflow: hidden; white-space: nowrap;后面会继续补充
