blocks|key|856265|text|您可以使用正则表达式/(?!$)/|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|856266|"overpopulation".split(/(?!$)/)|code-block|syntax|javascript|856267|否定的先行断言(?!$)将在每个字符的前面进行匹配。|856268|entityMap^0|A|7|0|0|7|5|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

You can use the regular expression <code>/(?!$)/</code>:

<pre><code>"overpopulation".split(/(?!$)/)
</code></pre>

The negative look-ahead assertion <code>(?!$)</code> will match right in front of every character.

blocks|key|638972|text|它就像这样简单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|638973|s.split("");|code-block|syntax|javascript|638974|分隔符是一个空字符串，因此它将在每个字符之间拆分。|638975|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|$]]

It's as simple as:

<pre><code>s.split("");
</code></pre>

The delimiter is an empty string, hence it will break up between each single character.

blocks|key|856341|text|javascript中的split()方法接受两个参数:分隔符和限制。分隔符指定用于拆分字符串的字符。如果不指定分隔符，则返回整个字符串。但是，如果指定空字符串作为分隔符，则字符串将在每个字符之间拆分。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|856342|因此：|856343|s.split('')|code-block|syntax|javascript|856344|会有你想要的效果。|856345|更多信息here|offset|length|856346|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3schools.com/jsref/jsref_split.asp^0|0|0|0|0|4|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

The split() method in javascript accepts two parameters: a separator and a limit.
The separator specifies the character to use for splitting the string. If you don't specify a separator, the entire string is returned, non-separated. But, if you specify the empty string as a separator, the string is split between each character.

Therefore:

<pre><code>s.split('')
</code></pre>

will have the effect you seek.

More information <a href="http://www.w3schools.com/jsref/jsref_split.asp" rel="noreferrer">here</a>

blocks|key|856364|text|要支持表情符号，请使用以下代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|856365|('Dragon+').split(/(?!$)/u);|code-block|syntax|javascript|856366|=>+['D',+'r',+'a',+'g',+'o',+'n',+'+',+'']|offset|length|style|CODE|856367|entityMap^0|0|0|0|16|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

To support emojis use this

<pre><code>('Dragon ').split(/(?!$)/u);
</code></pre>

<code>=&gt; ['D', 'r', 'a', 'g', 'o', 'n', ' ', '']</code>

blocks|key|856441|text|.split('')会将表情符号一分为二。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|856442|Onur's+solutions和正则表达式的建议适用于某些表情符号，但不能处理更复杂的语言或组合表情符号。想想这个表情符号被毁了：|offset|length|856443|[..."️‍"]+//+returns+["",+"️",+"‍",+""]++instead+of+["️‍"]|code-block|syntax|javascript|856444|还要考虑这个印地语文本"अनुच्छेद“，它是这样拆分的：|856445|[..."अनुच्छेद"]++//+returns+++["अ",+"न",+"ु",+"च",+"्",+"छ",+"े",+"द"]|856446|但实际上应该像这样拆分：|856447|["अ","नु","च्","छे","द"]|856448|因为有些字符组合了标记(比如欧洲语言中的变音符号/重音符号)。|856449|您可以使用字素拆分器库来执行以下操作：|856450|https://github.com/orling/grapheme-splitter|856451|它正确地将基于标准的字母拆分在所有数百种奇异的边缘情况下-是的，有那么多。|856452|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/38901550/641833|1^0|0|0|G|0|0|0|0|0|0|0|0|0|0|17|1|0|0^^$0|@$1|2|3|4|5|6|7|19|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1A|8|@]|9|@$D|1B|E|1C|1|1D]]|A|$]]|$1|F|3|G|5|H|7|1E|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1F|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|1G|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|1H|8|@]|9|@]|A|$]]|$1|Q|3|R|5|H|7|1I|8|@]|9|@]|A|$I|J]]|$1|S|3|T|5|6|7|1J|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1K|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1L|8|@]|9|@$D|1M|E|1N|1|1O]]|A|$]]|$1|Y|3|Z|5|6|7|1P|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]]|11|$12|$5|13|14|15|A|$16|17]]|18|$5|13|14|15|A|$16|X]]]]

.split('') would split emojis in half.

<a href="https://stackoverflow.com/a/38901550/641833">Onur's solutions</a> and the regex's proposed work for some emojis, but can't handle more complex languages or combined emojis. 
Consider this emoji being ruined:

<pre><code>[..."️‍"] // returns ["", "️", "‍", ""] instead of ["️‍"]
</code></pre>

Also consider this Hindi text "अनुच्छेद" which is split like this:

<pre><code>[..."अनुच्छेद"] // returns ["अ", "न", "ु", "च", "्", "छ", "े", "द"]
</code></pre>

but should in fact be split like this:

<pre><code>["अ","नु","च्","छे","द"]
</code></pre>

because some of the characters are combining marks (think diacritics/accents in European languages).

You can use the grapheme-splitter library for this:

<a href="https://github.com/orling/grapheme-splitter" rel="noreferrer">https://github.com/orling/grapheme-splitter</a>

It does proper standards-based letter split in all the hundreds of exotic edge-cases - yes, there are that many.

<pre><code>var s = "overpopulation";
var ar = [];
ar = s.split();
alert(ar);
</code></pre>

I want to string.split a word into array of characters.

The above code doesn't seem to work - it returns "overpopulation" as Object..

How do i split it into array of characters, if original string doesn't contain commas and whitespace?

How do I split a string into an array of characters?

var s = "overpopulation";var ar = [];ar = s.split();alert(ar);我想把一个单词string.split成一个字符数组。上面的代码似乎不起作用-它将"overpopulation“作为Object返回。如果原始字符串不包含逗号和空格，我如何将其拆分成字符数组？

问如何将一个字符串拆分成一个字符数组？
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问如何将一个字符串拆分成一个字符数组？
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