blocks|key|587310|text|正则表达式示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587311|new+Date(+"13-01-2011".replace(+/(\d{2})-(\d{2})-(\d{4})/,+"$2/$1/$3")+);|code-block|syntax|javascript|587312|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

regular expression example: 

<pre><code>new Date( "13-01-2011".replace( /(\d{2})-(\d{2})-(\d{4})/, "$2/$1/$3") );
</code></pre>

blocks|key|587340|text|另一种可能性是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587341|var+from+=+"10-11-2011";+
var+numbers+=+from.match(/\d%2B/g);+
var+date+=+new+Date(numbers[2],+numbers[0]-1,+numbers[1]);|code-block|syntax|javascript|587342|匹配数字并对其重新排序|587343|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Another possibility:

<pre><code>var from = "10-11-2011"; 
var numbers = from.match(/\d+/g); 
var date = new Date(numbers[2], numbers[0]-1, numbers[1]);
</code></pre>

Match the digits and reorder them

blocks|key|803393|text|使用moment.js示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|803394|var+from+=+'11-04-2017'+//+OR+$("#datepicker").val();
var+milliseconds+=+moment(from,+"DD-MM-YYYY").format('x');
var+f+=+new+Date(milliseconds)|code-block|syntax|javascript|803395|entityMap|0|LINK|mutability|MUTABLE|url|https://momentjs.com/^0|2|9|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Using <a href="https://momentjs.com" rel="noreferrer">moment.js</a> example:

<pre><code>var from = '11-04-2017' // OR $("#datepicker").val();
var milliseconds = moment(from, "DD-MM-YYYY").format('x');
var f = new Date(milliseconds)
</code></pre>

blocks|key|803174|text|var+from+=+$("#datepicker").val();+
var+f+=+$.datepicker.parseDate("d-m-Y",+from);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|803175|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var from = $("#datepicker").val(); 
var f = $.datepicker.parseDate("d-m-Y", from);
</code></pre>

blocks|key|587166|text|使用以下格式：myDate+=+new+Date('2011-01-03');+//+Mon+Jan+03+2011+00:00:00|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|587167|entityMap^0|7|1O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Use this format: <code>myDate = new Date('2011-01-03'); // Mon Jan 03 2011 00:00:00</code>

blocks|key|803079|text|您还可以在Date()对象的括号内写入日期，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|803080|new+Date("Month+dd,+yyyy+hh:mm:ss")
new+Date("Month+dd,+yyyy")
new+Date(yyyy,mm,dd,hh,mm,ss)
new+Date(yyyy,mm,dd)
new+Date(milliseconds)|code-block|syntax|javascript|803081|entityMap^0|5|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can also write a date inside the parentheses of the <code>Date()</code> object, like these:

<pre><code>new Date("Month dd, yyyy hh:mm:ss")
new Date("Month dd, yyyy")
new Date(yyyy,mm,dd,hh,mm,ss)
new Date(yyyy,mm,dd)
new Date(milliseconds)
</code></pre>

blocks|key|587527|text|在我的情况下|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587528|new+Date("20151102034013".replace(/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/,+"$1-$2-$3T$4:$5:$6"))|code-block|syntax|javascript|587529|结果:+Mon+Nov+02+2015+04:40:13+GMT%2B0100+(CET)然后我使用.getTime()来处理毫秒|587530|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

In my case

<pre><code>new Date("20151102034013".replace(/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/, "$1-$2-$3T$4:$5:$6"))
</code></pre>

Result: Mon Nov 02 2015 04:40:13 GMT+0100 (CET)
then I use .getTime() to work with milliseconds

blocks|key|803121|text|您可以使用外部库来帮助您解决问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|803122|http://www.mattkruse.com/javascript/date/source.html|offset|length|803123|getDateFromFormat(val,format);|code-block|syntax|javascript|803124|另请参阅：Parse+DateTime+string+in+JavaScript|803125|entityMap|0|LINK|mutability|MUTABLE|url|1|https://stackoverflow.com/questions/1576753/parse-date-string-in-javascript^0|0|0|1G|0|0|0|5|Z|1|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|F|3|G|5|H|7|10|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|M|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|C]]|T|$5|P|Q|R|A|$S|U]]]]

You can use an external library to help you out.

<a href="http://www.mattkruse.com/javascript/date/source.html" rel="nofollow noreferrer">http://www.mattkruse.com/javascript/date/source.html</a>

<pre><code>getDateFromFormat(val,format);
</code></pre>

Also see this: <a href="https://stackoverflow.com/questions/1576753/parse-date-string-in-javascript">Parse DateTime string in JavaScript</a>

blocks|key|587270|text|看看Datejs上所有那些与日期相关的小问题..你也可以通过parseDate函数来解决这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|587271|entityMap|0|LINK|mutability|MUTABLE|url|http://www.datejs.com/^0|2|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Take a look at <a href="http://www.datejs.com/" rel="nofollow">Datejs</a> for all those petty date related issues.. You could solve this by parseDate function too

blocks|key|587575|text|您只需：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587576|var+f+=+new+Date(from.split('-').reverse().join('/'));|code-block|syntax|javascript|587577|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can just:
<pre><code>var f = new Date(from.split('-').reverse().join('/'));
</code></pre>

blocks|key|803139|text|您可以使用Regexp。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|803140|var+result+=+/%5E(\d{2})-(\d{2})-(\d{4})$/.exec($("#datepicker").val());
if+(result)+{
++++from+=+new+Date(
++++++++parseInt(result[3],+10),+
++++++++parseInt(result[2],+10)+-+1,+
++++++++parseInt(result[1],+10)
++++);
}|code-block|syntax|javascript|803141|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You could use a Regexp.

<pre><code>var result = /^(\d{2})-(\d{2})-(\d{4})$/.exec($("#datepicker").val());
if (result) {
 from = new Date(
 parseInt(result[3], 10), 
 parseInt(result[2], 10) - 1, 
 parseInt(result[1], 10)
 );
}
</code></pre>

blocks|key|587622|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587623|let+dateString++=+'13-02-2021'+//date+string+in+dd-mm-yyyy+format

let+dateArray+=+dateString.split("-");
//dateArray[2]+equals+to+2021
//dateArray[1]+equals+to+02
//dateArray[0]+equals+to+13

//+using+template+literals+below

let+dateObj+=+new+Date(`${dateArray[2]}-${dateArray[1]}-${dateArray[0]}`);

//+dateObj+equals+to+Sat+Feb+13+2021+05:30:00+GMT%2B0530+(India+Standard+Time)

//I'm+from+India+so+its+showing+GMT%2B0530|code-block|syntax|javascript|587624|587625|附言:始终参考文档中的基础知识、MDN或DevDocs|offset|length|587626|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date|1|https://devdocs.io/javascript/global_objects/date/date^0|0|0|0|G|3|0|K|7|1|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|G|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Y|8|@]|9|@$J|Z|K|10|1|11]|$J|12|K|13|1|14]]|A|$]]|$1|L|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]|T|$5|O|P|Q|A|$R|U]]]]

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>let dateString = '13-02-2021' //date string in dd-mm-yyyy format

let dateArray = dateString.split("-");
//dateArray[2] equals to 2021
//dateArray[1] equals to 02
//dateArray[0] equals to 13

// using template literals below

let dateObj = new Date(`${dateArray[2]}-${dateArray[1]}-${dateArray[0]}`);

// dateObj equals to Sat Feb 13 2021 05:30:00 GMT+0530 (India Standard Time)

//I'm from India so its showing GMT+0530</code></pre>
</div>
</div>

P.S : Always refer docs for basics, <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date" rel="nofollow noreferrer">MDN</a> or <a href="https://devdocs.io/javascript/global_objects/date/date" rel="nofollow noreferrer">DevDocs</a>

blocks|key|803285|text|new+Date().toLocaleDateString();|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|803286|就这么简单，只需将日期传递给js+date对象即可。|unstyled|803287|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>new Date().toLocaleDateString();
</code></pre>

simple as that, just pass your date to js Date Object

i am trying to convert a string in the format dd-mm-yyyy into a date object in JavaScript using the following:

<pre><code> var from = $("#datepicker").val();
 var to = $("#datepickertwo").val();
 var f = new Date(from);
 var t = new Date(to);
</code></pre>

<code>("#datepicker").val()</code> contains a date in the format dd-mm-yyyy. 
When I do the following, I get "Invalid Date":

<pre><code>alert(f);
</code></pre>

Is this because of the '-' symbol? How can I overcome this?

Convert dd-mm-yyyy string to date

我尝试使用以下代码将dd-mm-yyyy格式的字符串转换为JavaScript中的date对象： var from = $("#datepicker").val(); var to = $("#datepickertwo").val(); var f = new Date(from); var t = new Date(to);("#datepicker").val()包含dd-mm-yyyy格式

问将dd-mm-yyyy字符串转换为日期
EN

回答 13

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问将dd-mm-yyyy字符串转换为日期
EN