var now = new Date(); //創(chuàng)建Date對(duì)象的語(yǔ)法
注釋：Date 對(duì)象會(huì)自動(dòng)把當(dāng)前日期和時(shí)間保存為其初始值
//獲取特定格式的時(shí)間
now.getFullYear() // 獲取完整的年份 2019
now.getMonth() //獲取當(dāng)前月份(0-11,0代表1月)
now.getDate() //獲取當(dāng)前日(1-31)
now.getDay() //獲取當(dāng)前星期X(0-6,0代表星期天)
now.getTime() //獲取當(dāng)前時(shí)間(從1970.1.1開(kāi)始的毫秒數(shù))
now.getHours() //獲取當(dāng)前小時(shí)數(shù)(0-23)
now.getMinutes() //獲取當(dāng)前分鐘數(shù)(0-59)
now.getSeconds() //獲取當(dāng)前秒數(shù)(0-59)
now.toLocaleDateString() //獲取當(dāng)前日期 "2019/1/21"
- js獲取時(shí)間戳的幾種方式：
返回值都是 1970/1/1 午夜距離該日期時(shí)間的毫秒數(shù)
- 獲取自定義時(shí)間戳的方法：
1）var old = new Date('2018/03/03').getTime() //1520006400000
2）var old = new Date('2018/03/03').valueOf() //1520006400000
3）var old = Date.parse('2018/03/03') //1520006400000
- 獲取1970/1/1 午夜到當(dāng)前時(shí)間的時(shí)間戳：
1）var now = new Date().getTime() //返回值都是 1552635602832
2）var now = new Date().valueOf()
3）var now = +new Date()
4) var now = Date.now()
//某個(gè)時(shí)間段執(zhí)行一段代碼：
if(new Date('11/19/2018 15:30').getTime() < +new Date() && +new Date() < new Date('11/19/2018 18:00').getTime()){
// 11/19/2018 15:30 11/19/2018 18:00
this.isActive = true; //此處要執(zhí)行的代碼
this.$apply()
}
