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builtin(str): add withPrefix

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Closes #4142

Signed-off-by: Prajwal S N <prajwalnadig21@gmail.com>
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Prajwal S N 2022-10-08 12:52:10 +05:30
parent f0786121fb
commit d6526fa425
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5
crates/compiler/builtins/roc/Str.roc
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@ -43,6 +43,7 @@ interface Str
appendScalar,
walkScalars,
walkScalarsUntil,
withPrefix,
]
imports [
Bool.{ Bool },
@ -561,3 +562,7 @@ strToNumHelp = \string ->
Ok result.aresult
else
Err InvalidNumStr
## Adds the specified prefix to the string, like a reversed Str.concat
withPrefix : Str, Str -> Str
withPrefix = \str, prefix -> Str.concat prefix str