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QrCode.Utf8Data Class

Extends QrCode.Data
Defined in: js/qr-code-generator-base.js:4778

This class sets the extended channel interpretation mode indicator for the utf8 character set. While this is a Data object, it does not directly encode data. Instead, it sets a flag in the data stream which tells a decoder how to interpret the data that follows. Utf8 is a widely supported character set, so this may be a good choice if you need to encode characters that are not supported in alphanumeric mode. Note that JavaScript strings do not use utf8 characters. This module does not provide the functionality required to convert characters to utf8.

Constructor

QrCode.Utf8Data

(
  • config
)

Defined in js/qr-code-generator-base.js:4778

Parameters:

  • config Object

    Configuration object.

Item Index

Methods

Attributes

Methods

toBinaryString

(
  • version
)
String

Defined in js/qr-code-generator-base.js:4795

Returns a properly formatted binary string for utf8 data.

Parameters:

Returns:

String:

toBinaryString

(
  • version
)
String

Inherited from QrCode.Data: js/qr-code-generator-base.js:3000

This is an abstract method that should be implemented to return a properly formatted binary string for a specific data encoding mode.

Parameters:

Returns:

String:

Attributes

type

String

Inherited from QrCode.Data but overwritten in js/qr-code-generator-base.js:4807

Default: 'utf8'

Fires event typeChange

Fires when the value for the configuration attribute type is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.

value

Number | String

Inherited from QrCode.Data but overwritten in js/qr-code-generator-base.js:4817

This object does not require a value.

Default: ''

Fires event valueChange

Fires when the value for the configuration attribute value is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.

Parameters:

  • e EventFacade
    An Event Facade object with the following attribute-specific properties added:
    • prevVal Any
      The value of the attribute, prior to it being set.
    • newVal Any
      The value the attribute is to be set to.
    • attrName String
      The name of the attribute being set.
    • subAttrName String
      If setting a property within the attribute's value, the name of the sub-attribute property being set.