使用 JavaScript 分割字符串

发布于 2024-12-20 12:48:36 字数 415 浏览 0 评论 0原文

下面的代码对我有用，但似乎很冗长。我可以缩短它吗？

var str = "some title of an event here, weekday 17:00&nbsp;&ndash;&nbsp;18:00 o’clock, with name of a person";
var date = str.split(', ');
var time = date[1].split(' ');
var timeItems = time[1].split('–');
var startTime = timeItems[0].trim();
var endtime = timeItems[1].trim();
alert("event lasts from "startTime + " to " + endtime);

谢谢

原文

the following code works for me, but seems to be quite long-winded. Can i shorten it?

var str = "some title of an event here, weekday 17:00 – 18:00 o’clock, with name of a person";
var date = str.split(', ');
var time = date[1].split(' ');
var timeItems = time[1].split('–');
var startTime = timeItems[0].trim();
var endtime = timeItems[1].trim();
alert("event lasts from "startTime + " to " + endtime);

Thanks

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非要怀念 2024-12-27 12:48:36

您想要的只是 startTime 和 endTime 吗？如果是这样，您可以对冒号字符执行 split() ：

times = str.split(':');
startTime = times[0].slice(-2) + ':' + times[1].slice(0,2);
endTime = times[1].slice(-2) + ':' + times[2].slice(0,2);
alert("event lasts from " + startTime + " to " + endTime);

Is all you want the startTime and endTime? If so, you could just do split() on the colon character:

times = str.split(':');
startTime = times[0].slice(-2) + ':' + times[1].slice(0,2);
endTime = times[1].slice(-2) + ':' + times[2].slice(0,2);
alert("event lasts from " + startTime + " to " + endTime);

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孤寂小茶 2024-12-27 12:48:36

虽然正则表达式通常杀伤力太大，但它们会帮助您寻求更短的代码：

var str = "some title of an event here, weekday 17:00 – 18:00 o’clock, with name of a person";
var times = str.match(/\d\d?:\d\d/g);
alert("event lasts from " + times[0] + " to " + times[1]);

在 http://jsfiddle.net 上运行它/jvs3s/

While regexes are often overkill, they will help you here in your quest for shorter code:

var str = "some title of an event here, weekday 17:00 – 18:00 o’clock, with name of a person";
var times = str.match(/\d\d?:\d\d/g);
alert("event lasts from " + times[0] + " to " + times[1]);

Run it at http://jsfiddle.net/jvs3s/

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