hey why can't I use "removeFirst" here? <https://l...
# getting-startedv
Varun
03/20/2021, 4:08 AMhey why can't I use "removeFirst" here? https://leetcode.com/playground/EViekAXG
Varun
03/20/2021, 4:18 AMmanaged to get a deque implementation working, but for learning purposes want to understand why i can't use removeFirst
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jbnizet
03/20/2021, 7:57 AMProbably because the version of Kotlin that leetcode uses predates version 1.4, and removeFirst has been added to the standard lib in version 1.4: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/remove-first.html
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