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fix: README.md examples with .try
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Mark 2025-10-16 09:56:28 +02:00
parent 35efae75ac
commit cd2db1ab27
1 changed files with 6 additions and 3 deletions
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mers/README.md
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@ -101,7 +101,7 @@ mers only has a few different expressions:
- `loop expression` - `loop expression`
- type hints `[Int] 5` - type hints `[Int] 5`
- type definitions `[[Number] Int/Float]` or `[[TypeOfX] := x]`, which can also be used as a type check: `[[_] := expression]` checks that the expression is type-correct - type definitions `[[Number] Int/Float]` or `[[TypeOfX] := x]`, which can also be used as a type check: `[[_] := expression]` checks that the expression is type-correct
- try: mers' switch/match: `x.try(num -> num.div(2), _ -> 0)` - try: mers' switch/match: `x.try([(Int -> Int)] num -> num.div(2), _ -> 0)`
mers treats everything as call-by-value by default: mers treats everything as call-by-value by default:
@ -175,7 +175,10 @@ It can also produce values.
``` ```
val := loop { val := loop {
"> ".print "> ".print
().read_line.trim.parse_float ().read_line.try(
[(() -> (()))] () -> (())
[((String) -> ()/(Float))] (line) -> line.trim.parse_float
)
} }
val.println val.println
``` ```
@ -196,7 +199,7 @@ val := if "a".eq("a") {
} }
val.try( val.try(
// if the value is a number, print half of it // if the value is a number, print half of it
num -> num.div(2).println [(Int -> ())] num -> num.div(2).println
// for any other value, print it directly // for any other value, print it directly
other -> other.println other -> other.println
) )