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blockly > ConnectionChecker > canConnect

ConnectionChecker.canConnect() method​

Check whether the current connection can connect with the target connection.

Signature:

canConnect(a: Connection | null, b: Connection | null, isDragging: boolean, opt_distance?: number): boolean;

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:

boolean

Whether the connection is legal.