Eclipse turns off JavaScript checksum

When I recently developed a Web project with Eclipse, I suddenly discovered that eclipse is always doing JavaScript validate when I modify the save JavaScript, and it's very long and sometimes it feels like it's dead. Try to turn off the JavaScript validate functionality in Eclipse's configuration, but it doesn't feel like it works, and finally you can only modify the project's. project file to comment out the following lines.

<buildCommand>
    <name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
    < arguments>
    </arguments>
</buildCommand>