Eclipse removes JavaScript validation errors

The first step:
To remove the JS validation from eclipse:
Window->preference->java script->validator->errors/warnings->enable Javascript Sematic The hooks in front of the validation are removed;

Step Two:
Locate the project directory and remove the following sections from the. project file in the projects directory:
<buildCommand>
<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
<arguments></arguments>
</buildCommand>
And
<nature>org.eclipse.wst.jsdt.core.jsNature</nature>

Step Three:
Copy the JS file, and then delete the JS file in Eclipse, and copy the JS file in again;

Eclipse removes JavaScript validation errors