AB Cron Expression

Visual cron schedule editor: compose/validate cron strings, show human description and next run times.

HTML tag: c-eb4529ea41bd94e55bb95c4d7ef82ca1b

When to use

• cron schedule editor
• job recurrence configuration
• validate cron with next run preview

Props

Prop	Type	Default	Description
value	String
timezone	String
supports_seconds	Boolean	false
supports_last_dom	Boolean	false
preset	String	custom
disabled	Boolean	false
size	String	md
density	String	comfortable
tone	String	neutral
appearance	String	solid
sec	String
min	String
hour	String
dom	String
mon	String
dow	String
is_valid	Boolean	true
error_message	String
warning_message	String
configuration_description	String
next_occurrences_gmt	String
next_occurrences_local	String

Rules

• Bind .value to cron string; use part fields (sec, min, hour, dom, mon, dow) when building visually.
• value-changed on edits; apply on explicit apply; validation-changed for is_valid/error_message.
• supports_seconds and supports_last_dom gate field options.
• timezone affects displayed next occurrences.

Events

Event	Detail
validation-changed	is_valid: Boolean, error_message: String, warning_message: String
value-changed	value: String, parts: [object Object], is_valid: Boolean, error_message: String, warning_message: String
apply	value: String, parts: [object Object], is_valid: Boolean, error_message: String, warning_message: String

Methods

Signature	Description
composeFromParts()
applyPreset(presetId: any)
parseToParts()
validateCron(value: any)
validateAndEmit(emitValueChanged: any)
updateConfigurationDescription()
apply()

What to avoid

Do not use ab-input for raw cron strings when this editor is available. Do not treat as a generic text field — validation and presets are built-in.

Example

<c-eb4529ea41bd94e55bb95c4d7ef82ca1b .value=${schedule} .timezone=${'UTC'} @value-changed=${onCron} @validation-changed=${onValid}></c-eb4529ea41bd94e55bb95c4d7ef82ca1b>