How to override js method in Odoo 15?

Can anyone give me minimal code so that any method I can override for JS method?

changeMode(mode) {
        if (!this.hasPriceControlRights && mode === 'price' ) {
          
            return;
        }
        if (!this.hasManualDiscount && mode === 'discount') {
            return;
        }
        this.trigger('set-numpad-mode', { mode });
    }