Is it usable from browser?

I am using ajv validation from browser. By adding the following code in the HTML page.

Is there any way or possible to use ajv-errors in the HTML page. I had tried to use by the following default in the html page. But it is not working.

var ajv = new Ajv({allErrors: true}); // options can be passed, e.g. {allErrors: true}
var schemaForRegCheck ={
"type": "number",
"minimum": 10,
"additionalProperties": false,
"errorMessage": 'this is a custom error messages'
}

Thank you advance.