collapseTopMarginForChild

export

function collapseTopMarginForChild(
  n: number,
  tchildren: readonly Array<TNode>
) : number | null

Defined in packages/render-html/src/helpers/collapseTopMarginForChild.ts

Compute top collapsed margin for the nth ​TNode-child of a list of TNodes.

Parameters

n

required

n: number;

The index for which the top margin should be collapsed.

tchildren

required

tchildren: readonly Array<TNode>;

The list of ​TNode children.

Returns

null when no margin collapsing should apply, a number otherwise.