Vim What?Commandsd
d

The d command in Vim

Operator

delete

Delete operator — removes the text covered by the motion into a register (default: unnamed "). Double dd deletes the whole line.
Examples
Related plugin

tpope/vim-surround — ds{char} deletes surrounding character. e.g. ds" removes surrounding quotes, ds) removes parens.

Reference

Official Vim help for d

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Related operators