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- Dictionaryrequired/rɪˈkwʌɪəd/
adjective
- 1. officially compulsory, or otherwise considered essential; indispensable: "eight editions were published, each required reading for trainees" Similar Opposite
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Oct 18, 2016 · By default, fields in a model are optional unless you put them in the required list. Below is an example - id, category are optional fields, name is required. Note that required is not an attribute of fields, but an attribute of the object itself - it's a list of required properties.
Aug 4, 2015 · We dropped required fields in proto3 because required fields are generally considered harmful and violating protobuf's compatibility semantics. The whole idea of using protobuf is that it allows you to add/remove fields from your protocol definition while still being fully forward/backward compatible with newer/older binaries.
Jun 21, 2019 · Maybe you got mixed up with the JSONP service dependency format, which uses require() to load the service, and then specify define() as the JSONP callback which will eventually define the module once the service responds. So in the end, you use define() to define modules, and require() to load them.
Required parameters first, optional parameters after. Optional parameters always with a =None. Easy and fast example: def example_function(param1, param2, param3=None, param4=None): pass # Doesn't work, param2 missing example_function("hello") # Works example_function("hello", "bye") # Works.
Aug 9, 2017 · In other words, required means "property must be present", regardless of its value. The type, format, etc. of the property value are separate constraints that are evaluated separately from required, but together as a combined schema. In your example: {"id": ""} is valid: validates against required the value "" validates against type: string
So if required weren't reflected, you'd set it by adding the attribute: element.setAttribute("required", ""); ...which is the equivalent of element.required = true. You'd clear it by removing it entirely: element.removeAttribute("required"); ...which is the equivalent of element.required = false.
Oct 24, 2021 · I am using protobuf with version3 in Php. Below is my proto file syntax ="proto3"; package message.events.user.v1; message UserWasActivatedMessage { int32 userId = 1 ; string eventT...
On a site with thousands of required fields, I can move the asterisk in front of the input with one change to one line (:after to :before) or I can move it to the end of the label (.required label:after) or in front of the label, or to a position on the containing box, etc...
Jul 30, 2017 · const YourTable = sequelize.define('your_table', { firstname: { type: Sequelize.STRING, // This will require the firstname be present allowNull: false, // If you want to also have a length restriction, add the next line len: [2,50], // only allow values with length between 2 and 50 // That is 'Al' will be accepted and so will 'Rigoberto Fernando Luis María'.
Feb 24, 2020 · Specify "required" keyword in one of the select statements. If you want to change the default way of its appearance. You can follow these steps. This is just for extra info if you have any intention to modify the default behavior. Add the following into you .css file. /* style all elements with a required attribute */ :required { background: red; }
