21 lines
411 B
Plaintext
21 lines
411 B
Plaintext
:sig
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bool contains(String haystack, String needle)
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:params
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haystack : string to search in
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needle : substring to look for
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return value : `true` when `needle` appears in `haystack`, otherwise `false`
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:see
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>string
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:content
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Returns whether `haystack` contains `needle`.
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An empty `needle` always returns `true`.
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## Related Concepts
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- PHP: `str_contains()`
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- JavaScript / Node.js: `String.prototype.includes()`
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