validate of ui.counter, Methods Webix Docs

validates value of input

boolean validate();

boolean

result of validation

Example

if ($$("mytext").validate()){
    ....
}

Related samples

Per Item Validation with Predefined Rules

Details

Note that for proper validation:

input should be nested into a form;
but only its own validation rule will be considered.

webix.ui({
    view:"form", 
    elements:[
        { view:"text", required:true, name:"text1" },
        { view:"text", validate:webix.rules.isNumber, name:"text2" },
    ],
    elementsConfig:{
        on:{
           'onChange':function(newv, oldv){
              this.validate();
            }
        }
    }
});