JavaScript String Splitting: `substring()` vs. `split()`<\/h1>\n\n JavaScript offers two primary methods for dividing strings into substrings: `substring()` and `split()`. Each serves a distinct purpose.<\/p>\n\n
`substring()`<\/h2>\n The `substring()` method extracts a portion of a string based on starting and ending indices. It's ideal for retrieving a single substring from a known position within the string.<\/p>\n\n
Syntax:<\/strong> string.substring(startIndex, endIndex)<\/code><\/p>\n \n startIndex<\/code>: The index of the first character to include (0-based).<\/li>\n endIndex<\/code> (optional): The index *after* the last character to include. If omitted, the substring extends to the end of the string.<\/li>\n <\/ul>\n\n Example:<\/strong><\/p>\n \nconst str = \"Hello, world!\";\nconst sub = str.substring(7, 12); \/\/ Extracts \"world\"\nconsole.log(sub); \/\/ Output: \"world\"\n <\/pre>\n\n ??`indexof ()`? ???? ?? ?? ?? ??? ???? ?????.\n\n\n `split ()`\n `split ()`???? ??? ???? ???? ???? ??? ?? ??? ????. ??? ??? ?? ? ?? ??? ???? ???? ???? ? ????? (? : ??? ?? ? ?).\n\n ?? : <\/p>\n
\n : ???? ??? ? ???? ?? ?? ???. <\/h2>\n (?? ??) : ?? ? ??? ?? ??? ? \n \n\n ? : <\/p>\n
\n\n ?? ??? \n <\/strong>\n\n ? ???? ?????? string.split(separator, limit)\n <\/each><\/p>\n ??`substring ()`??? ??? ??? ???? ?? ?? ??? ??? ???? ? ?.\n ``split ()`? ??????. ??, ?? ?? ?? ??? ?? ???? ???? ???? ?? ???? ???? ? ?.\n \n\n \n\n\nseparator<\/code>\n<\/li> \n<\/ul><\/split><\/subs><\/split><\/use><\/p>"}
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<title>JavaScript String Splitting: substring() vs. split()</title>
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<h1>JavaScript String Splitting: `substring()` vs. `split()`</h1>
<p>JavaScript offers two primary methods for dividing strings into substrings: `substring()` and `split()`. Each serves a distinct purpose.</p>
<h2>`substring()`</h2>
<p>The `substring()` method extracts a portion of a string based on starting and ending indices. It's ideal for retrieving a single substring from a known position within the string.</p>
<p><strong>Syntax:</strong> <code>string.substring(startIndex, endIndex)</code></p>
<ul>
<li><code>startIndex</code>: The index of the first character to include (0-based).</li>
<li><code>endIndex</code> (optional): The index *after* the last character to include. If omitted, the substring extends to the end of the string.</li>
</ul>
<p><strong>Example:</strong></p>
<pre class="brush:php;toolbar:false"><code>
const str = "Hello, world!";
const sub = str.substring(7, 12); // Extracts "world"
console.log(sub); // Output: "world"
??`indexof ()`? ???? ?? ?? ?? ??? ???? ?????.
`split ()`
`split ()`???? ??? ???? ???? ???? ??? ?? ??? ????. ??? ??? ?? ? ?? ??? ???? ???? ???? ? ????? (? : ??? ?? ? ?).
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? ???? ?????? string.split(separator, limit)
??`substring ()`??? ??? ??? ???? ?? ?? ??? ??? ???? ? ?.
``split ()`? ??????. ??, ?? ?? ?? ??? ?? ???? ???? ???? ?? ???? ???? ? ?.
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