nested array filter data script code

   // searchData(){

  //   let defaultMeshData = this.dataServ.getModelObjectData();

  //   let filterData = []

  //   // if(defaultMeshData.length>0){

  //   //   defaultMeshData.forEach(mesh => {

  //   //     if(mesh.children.length>0){

  //   //       this.getSearchChildren(mesh)

  //   //     }

  //   //   });

  //   // }

  //   // this.meshObject = this.dataServ.getModelObjectData().filter(p => (p.isParentKnowledgeSkills).map(p => ({

  //   //     ...p,

  //   //     subCategories: this.getSearchChildren(p)

  //   // })));

  //   let result = defaultMeshData.reduce((a/*Accumulator*/, o/*Current object in array*/) => {

  //     // 1. We get the events with a specific category  (In this case -> 3)

  //     var filtered = o.children.filter((children) =>  (children.name).toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1);

  //     // 2. If the previous filter returns at least one event, we need to push

  //     //    the current object 'o' with the filtered events.

  //     if (filtered.length) { // if length !== 0 we need to push the object.

  //       // 3. We use Object.assign to avoid any mutation over the original object.

  //       //    So, basically we create a new object with the original properties

  //       //    and finally we assign the filtered events to the property events.

  //       a.push(Object.assign({}, o, {children: filtered}));

  //     }

  //     return a;

  //   }, []/*Initial value (this array will contain the filtered objects)*/);

  //   console.log(result)

  // }

  // getSearchChildren(mesh){

  //   // if(mesh.children.length>0){

  //   //  return mesh.children = mesh.children.filter(children => (children.name).toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1)

  //   // }

  //   let result = mesh.reduce((a/*Accumulator*/, o/*Current object in array*/) => {

  //     // 1. We get the events with a specific category  (In this case -> 3)

  //     var filtered = o.children.filter((children) =>  (children.name).toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1);

  //     // 2. If the previous filter returns at least one event, we need to push

  //     //    the current object 'o' with the filtered events.

  //     if (filtered.length) { // if length !== 0 we need to push the object.

  //       // 3. We use Object.assign to avoid any mutation over the original object.

  //       //    So, basically we create a new object with the original properties

  //       //    and finally we assign the filtered events to the property events.

  //       a.push(Object.assign({}, o, {children: filtered}));

  //     }

  //     return a;

  //   }, []/*Initial value (this array will contain the filtered objects)*/);

  //   return result;

  // }

  // getSearchChildren(mesh){

  //   if(mesh.length>0){

  //     let result = mesh.reduce((a/*Accumulator*/, o/*Current object in array*/) => {

  //       // 1. We get the events with a specific category  (In this case -> 3)

  //       var filtered = o.children.filter((children) =>  (children.name).toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1).map(child=> ({...child, children:this.getSearchChildren(child.children)}));

  //       if (filtered.length) { // if length !== 0 we need to push the object.

  //         a.push(Object.assign({}, o, {children: filtered}));

  //       }

  //       return a;

  //     }, []/*Initial value (this array will contain the filtered objects)*/);

  //     return result;

  //   }else{

  //     return mesh;

  //   }

  // }

  // searchData(){

  //   //     this.meshObject = this.dataServ.getModelObjectData().filter(p => (p.isParentKnowledgeSkills).map(p => ({

  //   //     ...p,

  //   //     subCategories: this.getSearchChildren(p)

  //   // })));

  //   let result =[];

  //   let defaultMeshData = this.dataServ.getModelObjectData();

  //   if(this.searchInput==''){

  //      result = defaultMeshData

  //   }else{

  //     result = defaultMeshData.reduce((a/*Accumulator*/, o/*Current object in array*/) => {

  //   // var filtered = o.children.filter((children) =>  (children.name).toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1).map(child=> ({...child, children:this.getSearchChildren(child)}));

  //   var filtered = o.children.map(child=> ({...child, children:this.getSearchChildren(child.children)}));

  //     if (filtered.length) {

  //     a.push(Object.assign({}, o, {children: filtered}));

  //   }

  //   return a;

  // }, []/*Initial value (this array will contain the filtered objects)*/);

  // console.log(result);

  //   }

  //   this.meshObject = result;

  // }

   /**

   * Dynamic filter child list data filter and return data

   */

  getSearchChildren(mesh) {

    var result = [];

    mesh.children.forEach(child => {

      if (child.name.toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1) {

        result.push(child);

      } else {

        if (child.hasChildren && mesh['children'] && mesh['children'].length > 0) {

          // child list filter

          child['children'] = this.getSearchChildren(child);

          if (child['children'] && child['children'].length > 0) {

            result.push(child);

          }

        }

      }

    });

    return result;

  }

  /***

   * Search mesh parent list and call child list

   */

  searchData() {

    var defaultMeshData = JSON.parse(JSON.stringify(this.dataServ.getModelObjectData()));

    let result = [];

    this.expand = true;

    if (this.searchInput == '') {

      result = defaultMeshData;

      this.expand = false;

    } else {

      defaultMeshData = JSON.parse(JSON.stringify(defaultMeshData.filter(e => e.parent == "")));

      defaultMeshData.forEach(mesh => {

        if (mesh.name.toLowerCase().indexOf(this.searchInput.toLowerCase()) > -1) {

          result.push(mesh);

        } else {

          if (mesh.hasChildren && mesh['children'] && mesh['children'].length > 0) {

           // child list filter

            mesh['children'] = this.getSearchChildren(mesh);

            if (mesh['children'] && mesh['children'].length > 0) {

              result.push(mesh);

            }

          }

        }

      });

    }

    this.meshObject = result;

  }

  /**

   * Search clear list data

   */

  searchClear() {

    this.expand = false;

    this.searchInput = '';

    this.meshObject = JSON.parse(JSON.stringify(this.dataServ.getModelObjectData()));

  }

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