html required code example

Example 1: change input required text html

<input type="text" id="username" required placeholder="Enter Name"
    oninvalid="this.setCustomValidity('Enter User Name Here')"
    oninput="this.setCustomValidity('')"  />

Example 2: required

@Anxious Addax 
man what is this I was just checking the spelling of 'required'

Example 3: C# form required attribute

@Html.TextBoxFor(m => m.ShortName, 
new { @class = "form-control", placeholder = "short name", required="required"})

Example 4: required

{
	"id": "ServiceDescription",
	"type": "object",
	"properties": {
		"id": {
			"type": "string",
			"description": "service ID, e.g., \"com.webos.sync.service\" . Every  service has a unique ID."
		},
		"description": {
			"type": "string",
			"description": "It describes the service description."
		},
		"version": {
			"type": "string",
			"description": "It shows the version of the service."
		},
		"schemaVersion": {
			"type": "string",
			"description": "It  just describes the  version of the schema."
		},
		"services": {
			"type": "array",
			"items": {
				"type": "object",
				"properties": {
					"name": {
						"type": "string",
						"description": "It descrbies the service name"
					},
					"description": {
						"type": "string",
						"description": "service description"
					},
					"type": {
						"type": "string",
						"description": "it can be  either JS service or external service",
						"enum": ["JS", "Native"]
					},
					"isDynamicService": {
						"type": "boolean",
						"default": false,
						"description": "If true, then serviceType is  dynamic else serviceType is static."
					},
					"acgTrustLevel": {
						"type": "string",
						"enum": [
							"oem",
							"dev",
							"part"
						],
						"description": "service trust level"
					},
					"allowedNames": {
						"type": "array",
						"items": {
							"type": "string"
						},
						"description": "It list out the multiple service names ."
					},
					"outbound": {
						"type": "array",
						"items": {
							"type": "string"
						},
						"description": "It describes Array of services that this service is allowed to send requests to."
					},
					"isPrivileged": {
						"type": "boolean",
						"default": false,
						"description": "If true then type is prilieged else  type is regular."
					},
					"requiredPermissions": {
						"type": "array",
						"items": {
							"type": "string"
						},
						"description": "Specifies the security groups required to run the service."
					},
					"Commands": {
						"type": "array",
						"items": {
							"type": "object",
							"properties": {
								"name": {
									"type": "string",
									"description": "it gives absolute path of api of the service"
								},
								"description": {
									"type": "string",
									"description": "it gives the api description"
								},
								"groups": {
									"type": "array",
									"items": {
										"type": "string"
									},
									"description": "each api is placed into set of groups. it just list out the group names"
								}
							},
							"description": "Pair of name  and groups",
							"required": ["name", "groups"]
						},
						"description": "Array of functions of that service"
					},
					"groups": {
						"type": "array",
						"items": {
							"type": "object",
							"properties": {
								"name": {
									"type": "string",
									"description": "it descibes group name"
								},
								"description": {
									"type": "string",
									"description": "it describes the group information"
								},
								"acgTrustLevel": {
									"type": "string",
									"enum": [
										"oem",
										"dev",
										"part"
									],
									"description": "it descibes group trust level"
								}
							},
							"description": "Pair of name and acgTrustLevel",
							"required": ["name", "acgTrustLevel"]
						},
						"description": "Array of groups"
					}
				},
				"description": "set of name, type, isDynamicService ,requiredPermissions, Commands and groups",
				"required": ["name", "type", "isDynamicService", "requiredPermissions", "Commands", "groups"]
			},
			"description": "Array of services"
		}
	},
	"required": [
		"id",
		"services",
		"schemaVersion"
	]
}