<updateValue>
<updateValue> is a General Operator
component that changes the value or property of a named component based on a button click interaction or a boolean condition.
Attributes and Properties
| Attribute | Type | Values |
|---|---|---|
anchor = "…" | point | |
draggable = "…" | boolean | "true" "false" |
labelIsName = "…" | boolean | "true" "false" |
newValue = "…" | ||
positionFromAnchor = "…" | text | "upperright" "upperleft" "lowerright" "lowerleft" "top" "bottom" "left" "right" "center" |
simplify = "…" | text | "none" "full" "numbers" "numberspreserveorder" |
target = "…" | ||
triggerWhen = "…" | "true" "false" | |
triggerWhenObjectsClicked = "…" | ||
triggerWhenObjectsFocused = "…" | ||
triggerWith = "…" | ||
type = "…" | "math" "number" "boolean" "text" |
| Property | Type |
|---|---|
$u.anchor | point |
$u.disabled | boolean |
$u.draggable | boolean |
$u.fixed | boolean |
$u.fixLocation | boolean |
$u.hidden | boolean |
$u.label | label |
$u.labelIsName | boolean |
$u.positionFromAnchor | text |
$u.simplify | text |
Example: Change the color of a <circle>
An <updateValue> is used to change the styleNumber property of a named <circle> from the default value () to . Once this change occurs, the button becomes disabled.
Example: Change the value of a <number>
An <updateValue> is used to change the value of a <number> based on the number’s current value.
Attribute Example: target
The target attribute specifies which component or component property to update.
Attribute Example: type
The type attribute specifies the type of component that is changing. The default type is math, and valid values are math, number, boolean, or text.
Attribute Example: newValue
The newValue attribute specifies the new value for the target or target property.
Attribute Example: disabled
The disabled attribute takes a boolean condition. When the condition evaluates to true, the button becomes disabled.
Attribute Example: triggerWhen
The triggerWhen attribute establishes a boolean condition for triggering when the value should be updated. In this case, the circle turns blue when the correct answer is entered.
Attribute Example: triggerWith
The triggerWith attribute allows the update to occur based on interaction with another specified component. In this way, the actions of two or more <updateValue> components may be chained together.
Attribute Example: triggerWhenObjectsClicked
Updates can be triggered by click interactions with graphical components defined within a <graph> using the triggerWhenObjectsClicked attribute.