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unist utility to modify an existing child list to replace all elements between allinstances of two nodes

npm:

npm install unist-util-replace-all-between

importufrom'unist-builder'importreplaceAllBetweenfrom'unist-util-replace-all-between'consttree=u('root',[u('start','1'),u('node',[u('leaf','2'),u('node',[u('leaf','3')])]),u('end','4'),u('middle','1'),u('start','1'),u('node','2'),u('end','4'),])constnewChildren=replaceAllBetween(tree,{type:'start'},{type:'end'},()=>[u('replaced','1')])console.dir(newChildren,{depth:null})

Yields:

[{type:'replaced',value:'1'},{type:'middle',value:'2'},{type:'replaced',value:'1'},]

Mutate an existing parent's children to reflect function return

Parent's children are only search. None of their children (or further down) are searched

• parent (Parent)— Parent to walk through children of
• start (Test) —is-compatible test (such as atype) to find the start of each section
• end (Test) —is-compatible test (such as atype) to find the end of each section
• func ((nodes:Node[])=>Node[]) — Functionused to change nodes. Return value is then set to the parent.children value

Node[] — List of children fromparent post-mutation