Exceptions: Difference between revisions
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A catch causes all the statements preceding it within a block to be the implicit try block.
throw "not a math exception"
▲<syntaxhighlight lang="langur">throw "not a math exception"
▲catch[.e] {
▲ if .e'cat == "math" {
# change result...
} else {
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An exception variable may be specified, or you can simply use the implicit variable, which is _err.
<syntaxhighlight lang="langur">
100 / 0
catch {
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</syntaxhighlight>
<syntaxhighlight lang="langur">
val .safediv = fn(
safediv(7, 0) # 0
</syntaxhighlight>
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