This prevents the use of the Bind operator (::)
obj::func
::obj.func
::obj.func(val)These will not be allowed because they are not supported in the following browsers:
- Edge (any version at the time of writing)
- Safari (any version at the time of writing)
- Firefox (any version at the time of writing)
- Chrome (any version at the time of writing)
You can use the .bind function prototype method to create a bound function:
// these are equivalent:
obj::func
func.bind(obj)
// these are equivalent:
::obj.func
obj.func.bind(obj)If you're using the bind operator as a call expression, then you can use the .call function prototype method:
// these are equivalent:
obj::func(val)
func.call(obj, val)
// these are equivalent:
::obj.func(val)
obj.func.call(obj, val)This can be safely disabled if you intend to compile code with the @babel/plugin-proposal-function-bind Babel plugin.