18 lines
443 B
Text
18 lines
443 B
Text
// version 1.0.5-2
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/** overload ++ operator to increment a numeric string */
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operator fun String.inc(): String =
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try {
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val num = this.toInt()
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(num + 1).toString()
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}
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catch(e: NumberFormatException) {
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this // return string unaltered
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}
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fun main(args: Array<String>) {
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var ns = "12345"
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println(++ns)
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ns = "ghijk" // not numeric, so won't be changed by increment operator
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println(++ns)
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}
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