moment.js isValid function not working properly
moment.js isValid for a string in JSON date format
model.isValid always returns undefined How to set custom validator isValid property on Client Side? Knockout validation - isValid() always true after value change !isValid not accepting any value from input Page.isValid Problem in conditional validation dijit.Dialog isValid check always true Setting Page.IsValid to False Call javascript function when Page_isValid changes? What is difference between isValid() and _isValid in moment.js? Why do I get the error: ".isValid()" is not a function? Check for the user input isValid Backbone.js model.isValid() method not returning false for an invalid model ResponsiveSlide.js not working properly HTML Input Element has no method 'isValid' To prevent postback failed: isValid="undefined" isValid Form vaildation then run a function AngularJS Page.IsValid always return false even i disabled validation in java script .Net Page.IsValid always returns false when value is set by javascript scrillTop js script not working properly String value with moment.js JS not working properly ExtJs: Form isValid() is false. But how to know why the form is invalid? Page.IsValid is always false after validation error in asp.net How to use moment.js properly? Page.IsValid check internals? moment.js moment is undefined Model.Isvalid getting failed in my MVC 4 application. How do fix this? Moment.js Error -cannot Find method moment 'Page_IsValid' is undefined IE 11