Returns the number of milliseconds since a sketch started running.
millis() keeps track of how long a sketch has been running in milliseconds (thousandths of a second). This information is often helpful for timing events and animations.
If a sketch has a setup() function, then millis() begins tracking time before the code in setup() runs. If a sketch includes a preload() function, then millis() begins tracking time as soon as the code in preload() starts running.
示例
Returns
Number: number of milliseconds since starting the sketch.
Notice any errors or typos? Please let us know. Please feel free to edit src/utilities/time_date.js and open a pull request!