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blockly > IConnectionChecker > canConnectWithReason
IConnectionChecker.canConnectWithReason() method
Checks whether the current connection can connect with the target connection, and return an error code if there are problems.
Signature:
canConnectWithReason(a: Connection | null, b: Connection | null, isDragging: boolean, opt_distance?: number): number;
Parameters
| Parameter |
Type |
Description |
| a |
Connection | null |
Connection to check compatibility with. |
| b |
Connection | null |
Connection to check compatibility with. |
| isDragging |
boolean |
True if the connection is being made by dragging a block. |
| opt_distance |
number |
(Optional) The max allowable distance between the connections for drag checks. |
Returns:
number
Connection.CAN_CONNECT if the connection is legal, an error code otherwise.
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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18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 `canConnectWithReason` method determines if two connections are compatible, returning `Connection.CAN_CONNECT` for valid connections or an error code otherwise."],["It considers the connections (`a`, `b`), if a block is being dragged (`isDragging`), and optionally, the maximum allowed distance (`opt_distance`)."],["The method is part of the `IConnectionChecker` interface, which helps manage connection rules in Blockly."]]],[]]
