The cmake_minimum_required() function is used to avoid any cryptic error messages due to the CMakeLists.txt assuming a later version of CMake than the one installed on the current host. As an example, failing early, and with a clear message… CMake 3.2 or higher is required. You are running version 2.8.12.2 …is to be preferred over … Read more
@required is just an annotation that allows analyzers let you know that you’re missing a named parameter and that’s it. so you can still compile the application and possibly get an exception if this named param was not passed. However sound null-safety was added to dart, and required is now a keyword that needs to … Read more
The meta package provides a @required annotation that is supported by the DartAnalyzer. Flutter uses this a lot and provides @required directly from import ‘package:flutter/foundation.dart’ foo({@required String name}) {…} foo(); // results in static warning @required doesn’t check if the passed value is null or not, only that a value was actually passed on the … Read more
You have empty space inside text area, remove it: <textarea name=”reviews” rows=11 cols=50 maxlength=250 required ></textarea> Fiddle demo
JAX-RS separates quite nicely the deserialization from the validation, i.e. JSON-B (or Jackson) has by design no mechanism to enforce values to be non-null, etc. Instead, you can use BeanValidation for that: Add a dependency to javax.validation:validation-api in provided scope. Add the javax.validation.constraints.NotNull annotation to your field. For more details, go here.
When John Foliot wrote that article in 2012 it was very much true. You needed both. Today that is no longer the case. I can take your example, put it in a CodePen, and check it in JAWS and NVDA (sorry, no VoiceOver today): <label for=”textbox1″>Input</label> <input id=”textbox1″ type=”text” name=”Text Box” required> You will be … Read more
Mandatory: Have the first value empty – required works on empty values Prerequisites: correct html5 DOCTYPE and a named input field <select name=”somename” required> <option value=””>Please select</option> <option value=”one”>One</option> </select> As per the documentation (the listing and bold is mine) The required attribute is a boolean attribute. When specified, the user will be required to … Read more
Since the inputs are empty and therefore invalid when instantiated, Angular correctly adds the ng-invalid class. A CSS rule you might try: input.ng-dirty.ng-invalid { color: red } Which basically states when the field has had something entered into it at some point since the page loaded and wasn’t reset to pristine by $scope.formName.setPristine(true) and something … Read more
following from comments. Probably yes: class ThatForm(ModelForm): def __init__(self, *args, **kwargs): # first call parent’s constructor super(ThatForm, self).__init__(*args, **kwargs) # there’s a `fields` property now self.fields[‘desired_field_name’].required = False
According to the select_list Oracle select documentation the AS is optional. As a personal note I think it is easier to read with the AS