How to Remove u200b

Remove

Search regular expression \x{200b}.
\u200b cannot match it in SublimeText.

u200b (ZERO WIDTH SPACE)

UTF-8 (hex) 0xE2 0x80 0x8B (e2808b)
UTF-16 (hex) 0x200B (200b)

SublimeText Plugin

Preferences -> Browse Packages. Put the following two files under User.

x_u200b_killer.py

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import sublime, sublime_plugin

class ShowU200b(sublime_plugin.EventListener):
    def on_modified_async(self, view):
        u200b_regions = view.find_all('\u200b')
        if len(u200b_regions) > 0:
            view.add_regions("u200b_regions", u200b_regions, "string", "circle")
            view.show_popup('U200B Detected!!!')
        else:
            view.erase_regions("u200b_regions")


class RemoveU200b(sublime_plugin.TextCommand):
    def run(self, edit):
        print('Removing U200B')

        regions = self.view.find_all('\u200b')
        for r in reversed(regions):
            self.view.erase(edit, r)

x_u200b_killer.sublime-commands

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[
    { "caption": "Remove U200b", "command": "remove_u200b" },
]

Reference

Unicode Character ‘ZERO WIDTH SPACE’ (U+200B)
delete U+200B zero-width space characters using sublime text 3