Question

我试图找不到多少天留在学校里,并把它作为“团结倡议”的支部。

j 股价股只花百分比。鉴于今天,我如何能够在两个供应日期之间找到我大致如此之多的百分比?

Answer 1

<Example:http://jsfiddle.net/FLaJM/4/"rel=“noreferer” http://jsfiddle.net/FLaJM/4/

var start = new Date(2005,0,1),
    end = new Date(2021,0,1),
    today = new Date();

alert( Math.round(100-((end - start) * 100 ) / today) +  %  );

或者如果你想要保留百分比:

<Example:http://jsfiddle.net/FLaJM/3/"rel=“noreferer”>http://jsfiddle.net/FLaJM/3/

alert( Math.round(((end - start) * 100 ) / today) +  %  );

Answer 2

如果你使用MomentJS,我高度建议用Javascriptdate tuff做:

var percentOfDayRangeComplete = function(start, end) {
    var now = moment();
    start = start || moment(now).startOf( day );
    end = end || moment(now).endOf( day );
    var totalMillisInRange = end.valueOf() - start.valueOf();
    var elapsedMillis = now.valueOf() - start.valueOf();
    // This will bound the number to 0 and 100
    return Math.max(0, Math.min(100, 100 * (elapsedMillis / totalMillisInRange)));
};

rel=“nofollow”>jsFiddle,看它是否采取行动......

Answer 3

completed = ((timenow - timestart) / (timeclose - timestart)) * 100

Answer 4

最为容易的方式(从理论上讲,你可以将守则视为一种做法)是:

Determine the number of days you have in the school year (typically ~185 for most public schools)
Calculate the number of school days left between your current date and the end of classes (make sure you ignore weekends, holidays, in-service days, etc as these are not part of the 185).
Take the value from step two and divide it into the first. That will give you your percentage.
Display that in the jQuery UI progress bar.

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