Adds the "selectWord" (extension.selectWord) action to vscode which will select the word under the cursor. selectWord also supports multi-cursor, which results in multiple selected words.
By default, selectWord is bound to Cmd+Alt+W on OSX and Ctrl+Alt+W on all other platforms.
Note: Many people change the key binding to Ctrl+W (or Cmd+W), but to avoid conflicting behaviour, you need to first remove the existing Ctrl+W (or Cmd+W) key bindings which close the editor window.
Place the cursor on a word and then press the key binding:
Place the cursor in multiple locations by holding alt, then press the key binding:
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