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Character info

Character⇕
UnicodeU+21D5
Korean name상하 겹화살표
Official nameup down double arrow
CategoryOther symbol
HTML code⇕
JavaScript"\u{21D5}"

Names and categories come from official Unicode 18.0.0 data. Korean names are ours. Unicode UnicodeData.txt 18.0.0 (Unicode License v3)

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More on typing by system in the keyboard guide.