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element-plus/docs/en-US/component/config-provider.md
kooriookami 1163d27f71 feat(components): add empty-values and value-on-clear props (#16361)
* feat(components): add empty values

* feat(hooks): update

* feat(components): update

* feat(components): update

* feat: update

* feat(components): update

* feat(components): update

* feat(components): update

* feat: update doc

* feat: add doc
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title, lang
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Config Provider en-US

Config Provider

Config Provider is used for providing global configurations, which enables your entire application to access these configurations everywhere.

i18n Configurations

Configure i18n related properties via Config Provider, to get language switching feature.

:::demo Use two attributes to provide i18n related config

config-provider/usage

:::

Button Configurations

:::demo

config-provider/button

:::

Message Configurations

:::demo

config-provider/message

:::

Empty Values Configurations ^(2.7.0)

Supported components list
  • Cascader
  • DatePicker
  • Select
  • SelectV2
  • TimePicker
  • TimeSelect
  • TreeSelect

Set empty-values to support empty values of components. The fallback value is ['', null, undefined]. If you think the empty string is meaningful, write [undefined, null].

Set value-on-clear to set the return value when cleared. The fallback value is undefined. In the date component is null. If you want to set undefined, use () => undefined.

:::demo

config-provider/empty-values

:::

Experimental features

In this section, you can learn how to use Config Provider to provide experimental features. For now, we haven't added any experimental features, but in the feature roadmap, we will add some experimental features. You can use this config to manage the features you want or not.

API

Config Provider Attributes

Name Description Type Default
locale Locale Object ^[object]{name: string, el: TranslatePair} languages en
size global component size ^[enum]'large' | 'default' | 'small' default
zIndex global Initial zIndex ^[number]
namespace global component className prefix (cooperated with $namespace) ^[string] el
button button related configuration, see the following table ^[object]{autoInsertSpace?: boolean} see the following table
message message related configuration, see the following table ^[object]{max?: number} see the following table
experimental-features features at experimental stage to be added, all features are default to be set to false ^[object]
empty-values ^(2.7.0) global empty values of components ^[array]
value-on-clear ^(2.7.0) global clear return value ^[string] / ^[number] / ^[boolean] / ^[Function]

Button Attribute

Attribute Description Type Default
autoInsertSpace automatically insert a space between two chinese characters ^[boolean] false

Message Attribute

Attribute Description Type Default
max the maximum number of messages that can be displayed at the same time ^[number]

Config Provider Slots

Name Description Scope
default customize default content config: provided global config (inherited from the top)