javascript - 从文本中提取数字的最佳方法是什么

Question

P1W2DT6H21M32S

想知道从这里提取数字的最佳方法。

W = Weeks
D = Days
H = Hours
M = Minutes
S = Seconds

这样的事情只适用于M和S，而且看起来我做得不对。

    var time = "PT44M7S";
    var minutes = time.substring(2, time.indexOf("M"));
    var seconds = time.split("M")[1].substring(0, time.split("M")[1].indexOf("S"));

Answer 1

var timePeriod = {};
var str = 'P1W2DT6H21M32S';
var re = /(\d+)([WDHMS])/g;
while (result = re.exec(str)) {
    timePeriod[result[2]] = parseInt(result[1], 10);
}
console.log(timePeriod);

应该产生:

{ W: 1, D: 2, H: 6, M: 21, S: 32 }