eclipse中开发js会卡，去掉.project中的validate即可

<buildCommand>
            <name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
            <triggers>full,incremental,</triggers>
            <arguments>
                <dictionary>
                    <key>LaunchConfigHandle</key>
                    <value>&lt;project&gt;/.externalToolBuilders/org.eclipse.wst.jsdt.core.javascriptValidator.launch</value>
                </dictionary>
            </arguments>
        </buildCommand>