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Maybe would be good to have an Options window setting for the width of the Code Completion box or an option to exclude some of the information from the Code Completion box, so that it is less long.
Should be fixed in web main. There is option in Tools->Options-> Editor-> Code Completion -> JavaScript.
Integrated into 'main-silver', will be available in build *201401160001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-silver/rev/51bd5f279fcf User: Petr Pisl <ppisl@netbeans.org> Log: #240417 Code completion box should be less wide