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Version: 11.2

$.udb(ds).isRecursive()

note

This article is about the isRecursive() function of the DataSourceContainer object.

$.udb(ds).isRecursive()​

Detects whether the first data source in the container is a recursive data source, i.e. one that, directly or through one of its descendants, contains itself as a child data source.

Returns a boolean.

Syntax​

$.udb( *ds* ).isRecursive()

The required ds is a data source selector.

Example​

// avoid an unbounded traversal of a recursive data source's descendants
if ($.udb('EMPLOYEE').isRecursive()) {
    console.log('EMPLOYEE contains itself as a descendant; traverse its children with care');
}
else {
    $.udb('EMPLOYEE').children().forEach((child) => {
        console.log('Child data source: %s', child.name());
    });
}