See: https://leetcode.com/discuss/general-discussion/136588/Is-there-any-keyboard-shortcut-to-run-code-and-submit-solution/346347
Per
leetcode.com canceled the shortcut of submit code (Ctrl/Cmd + Enter) at September 2019. This script add it back.
Test page: Two Sum - LeetCode
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From Is there any keyboard shortcut to run code and submit solution? - LeetCode Discuss:
rainierClimber September 19, 2019 5:55 AM
I am not able to use CMD+ENTER anymore to submit. This is annoying. Any one else?rainierClimber September 19, 2019 5:57 AM
@1337c0d3r Is this done intentionally?1337c0d3r September 19, 2019 3:28 PM
Yes, this is done intentionally, as we believe submit solution is a heavy action, and user should only submit when they’re sure their program works.