How do I remove the key from an existing map?

if (exists $sampleMap{1})
{
      #Here I want to remove the "1" key from sampleMap
}
有帮助吗?

解决方案

Use delete for deleting the hash keys:

if (exists $sampleMap{1})
{
      delete $sampleMap{1}; #Here I want remove the "1" key from sampleMap.
}

For more details, take a look at delete.

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