Property 'maxPointers' does not exist on type 'HammerInput'

Question

Execution of code is not giving any error. But VSCode is giving this error. Saying property 'maxPointers' does not exist on type 'HammerInput'. Though it exists when I see in console. But how to remove this bug?

Answer 1

Like it says, it's a TS Lint issue. It is shown because the type of variable eve isn't explicit.

Option 1

One way to workaround it is to use bracket notation instead of dot notation to access the maxPointers property

mc.on('some event', (eve) => {
  if(eve['maxPointers'] === 1) {
    console.log('maxp');
  }
});

Option 2

Another workaround would be to define the variable eve as type any

mc.on('some event', (eve: any) => { // <-- `any` type
  if(eve.maxPointers === 1) {
    console.log('maxp');
  }
});