js uses Date object to process time implementation ideas and code_Basic knowledge

Let’s talk about this application scenario first:
Read data from an XML file, and then return the data inside to the page for drawing using a third-party plug-in.

Of course the data read in XML is of string type, and if you want to use the time mode of the X-axis of the drawing plug-in (this can more reasonably customize the x-axis range, x-axis data format, etc.). The data must be converted into a standard time object. At this time, the built-in Date type in js comes in handy:

Copy code The code is as follows:

var date = new Date();
//The input field with id time contains the time information extracted from xml
date.setHours($("#time" ).val().substring( 0, 2) 8);
date.setMinutes($("#time" ).val().substring(2, 4));
date.setSeconds($("#time" ).val ().substring(4, 6));

The time type in XML is in the format of hours, minutes and seconds (such as 083100). After taking out the data, you can use setHours, setMinutes , setSeconds and other time-setting functions to instantiate the Date object.