method str.find

Byte index of the first occurrence of needle.

Example:

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fn main() io {
  print("ab".repeat(3))
}

Output

ababab

Example:

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fn main() io {
  print("a-b-c".replace("-", "+"))
}

Output

a+b+c

Example:

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fn main() io {
  print("{"one\ntwo".lines()}")
}

Output

["one", "two"]

Example:

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fn main() io {
  print("{" a  b\tc ".splitWhitespace()}")
}

Output

["a", "b", "c"]

Example:

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fn main() io {
  print("{"a,b,,c".split(",")}")
}

Output

["a", "b", "", "c"]

Example:

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fn main() io {
  print("[{"  hi ".trimEnd()}]")
}

Output

[  hi]

Example:

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fn main() io {
  print("[{"  hi ".trimStart()}]")
}

Output

[hi ]

Example:

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fn main() io {
  print("[{"  hi \n".trim()}]")
}

Output

[hi]

Example:

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fn main() io {
  print("Hello".upper())
}

Output

HELLO

Example:

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fn main() io {
  print("Hello".lower())
}

Output

hello

Example:

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fn main() io {
  print("{"hello".find("l")} {"hello".find("z")}")
}

Output

2 none

pub(api) fn find(needle: str) -> usize?

Since. 1.0.0-beta

Parameters

Name	Type
`needle`	`str`

usize?

none declared (pure unless the body says otherwise)

Defined in: std/core/text.oxl:328