Lodash _.now() 方法
_.now() 方法用于获取自 Unix 纪元(1970 年 1 月 1 日 00:00:00 UTC)以来经过的毫秒数的时间戳。
句法:
_.now()
参数:此方法不接受任何参数。
返回值:此方法返回时间戳。
示例 1:
Javascript
// Defining Lodash variable
const _ = require('lodash');
// Getting the timestamp
console.log(_.now());
Javascript
// Defining Lodash variable
const _ = require('lodash');
// Creating print function to print
// timestamp after delay of 10ms
function print(){
setTimeout(() => {
console.log(
`Current timestamp is: ${_.now()}`)
}, 10)
}
// Running this function 5 times
// using _.times() function.
_.times(5, print)
console.log("Type of timestamp is: ",
typeof(_.now()))
输出:
1599545119753
示例 2:
Javascript
// Defining Lodash variable
const _ = require('lodash');
// Creating print function to print
// timestamp after delay of 10ms
function print(){
setTimeout(() => {
console.log(
`Current timestamp is: ${_.now()}`)
}, 10)
}
// Running this function 5 times
// using _.times() function.
_.times(5, print)
console.log("Type of timestamp is: ",
typeof(_.now()))
输出:
Type of timestamp is: number
Current timestamp is: 1599546710915
Current timestamp is: 1599546710916
Current timestamp is: 1599546710916
Current timestamp is: 1599546710916
Current timestamp is: 1599546710916
注意:这在普通 JavaScript 中不起作用,因为它需要安装 lodash 库。