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blockly > Events > BlockChange > (constructor)
Events.BlockChange.(constructor)
Constructs a new instance of the BlockChange class
Signature:
constructor(opt_block?: Block, opt_element?: string, opt_name?: string | null, opt_oldValue?: unknown, opt_newValue?: unknown);
Parameters
| Parameter |
Type |
Description |
| opt_block |
Block |
(Optional) The changed block. Undefined for a blank event. |
| opt_element |
string |
(Optional) One of 'field', 'comment', 'disabled', etc. |
| opt_name |
string | null |
(Optional) Name of input or field affected, or null. |
| opt_oldValue |
unknown |
(Optional) Previous value of element. |
| opt_newValue |
unknown |
(Optional) New value of element. |
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Last updated 2024-09-18 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[[["The `BlockChange` event class constructor creates a new instance to represent changes to a block in Blockly."],["It takes optional parameters specifying the block, element, name, old value, and new value associated with the change."],["These parameters help track modifications to fields, comments, disabled status, or other aspects of a block during user interactions."]]],[]]
