app-state-utils/functions/clearValue.js

A set of utilities for state management in web apps, integrates well with front-end state management libraries like redux and vuex, and can be used on server side as well. It defines methods for mutating keys and values in a conventional javascript object

"use strict";var _interopRequireDefault=require("@babel/runtime/helpers/interopRequireDefault");Object.defineProperty(exports,"__esModule",{value:true});exports.clearValue=void 0;var _typeof2=_interopRequireDefault(require("@babel/runtime/helpers/typeof"));/**
 * @author Peter Collins - https://github.com/onepetercollins
 * 
 * @fileoverview : Exports a function: clearValue(state, payload)
 * 
 * @function clearValue : For state drilling and surgical deletion of object values.
 *                        This function can be used to dynamically delete infinitely nested object values.
 *                        It takes current state and a payload object as arguments.
 *                        It returns a local function which returns updated state.
 * 
 * @param   {Object}   state The object to be mutated.
 * @param   {Object}   payload { name: String, child: Array }
 * @param   {String}   payload.name Name of the key to be cleared or second object in the nesting hieriarchy.
 * @param   {Array}    payload.child Array of strings pointing to the nested key to be cleared.
 * @returns {Function} (local function) (payload) => : The new app state, or current state if it was not altered.
 */

var clearValue=function clearValue(state,payload){

/**
     * @param   {Object} payload { name: String, child: Array }
     * @param   {String} payload.name Name of the key to be created or second object in the nesting hieriarchy.
     * @param   {Array}  payload.child Array of strings pointing to the nested key to be cleared.
     * @returns {Object} { updatedState } : The new app state, or current state if it was not altered.
     */

return function(){var payloadInherited=arguments.length>0&&arguments[0]!==undefined?arguments[0]:payload;
var currentState=JSON.parse(JSON.stringify(state));
var updatedState=null;
var name=payloadInherited.name,child=payloadInherited.child;
var nameField=name;
var children=child;
var testArray=state?Array.from(state):null;
var snapshots=[];

if((0,_typeof2.default)(state)!=='object'||state[state.length-1]===testArray.pop()&&typeof testArray.pop()!=="undefined"){
console.error("[state] must be a valid javascript object");
return state;
}

if((0,_typeof2.default)(children)==="object")/* check if 'children' is an empty array and nullify it */{
if(children.length===0&&typeof children[children.length-1]==="undefined"){
children=null;
}
}

if(!children&&currentState.hasOwnProperty(nameField)){
Object.assign(currentState,state);

if(typeof currentState[nameField]==="boolean"){
if(currentState[nameField]){
currentState[nameField]=false;
updatedState=currentState;
return updatedState;
}
}else if(typeof currentState[nameField]==="number"){
if(currentState[nameField]!==0){
currentState[nameField]=0;
updatedState=currentState;
return updatedState;
}
}else if((0,_typeof2.default)(currentState[nameField])==="object"){
if(currentState[nameField]){
if(typeof currentState.length==="number"&&typeof currentState[currentState.length-1]!=="undefined"){
currentState[nameField]=[];
updatedState=currentState;
return updatedState;
}else{
currentState[nameField]={};
updatedState=currentState;
return updatedState;
}
}
}else if(typeof currentState[nameField]==="string"||(0,_typeof2.default)(currentState[nameField])==="symbol"){
if(currentState[nameField].length){
currentState[nameField]='';
updatedState=currentState;
return updatedState;
}
}else{
currentState[nameField]='';
updatedState=currentState;
return updatedState;
}
}else if(!children&&!currentState.hasOwnProperty(nameField)){
console.error("The referenced property '".concat(nameField,"' does not exist in current state."));
return state;
}else if(children.length){
for(var index=0;index<children.length;index++){
if(!snapshots.length){
if(typeof currentState[nameField][children[index]]!=="undefined"){
snapshots.push(currentState[nameField][children[index]]);
}else{
console.error("The referenced property '".concat(children[index],"' does not exist in current state."));
return state;
}
}else{
if(typeof snapshots[snapshots.length-1][children[index]]!=="undefined"){
snapshots.push(snapshots[snapshots.length-1][children[index]]);
}else{
console.error("The referenced property '".concat(children[index],"' does not exist in current state."));
return state;
}
}

if(index===children.length-1){
for(var index0=snapshots.length-1;index0>=0;index0--){
if(index0===snapshots.length-1){
if(snapshots[snapshots.length-1]!==null){
if(typeof snapshots[snapshots.length-1]==="boolean"){
if(snapshots[snapshots.length-1]){
snapshots[snapshots.length-1]=false;
}
}else if(typeof snapshots[snapshots.length-1]==="number"){
if(snapshots[snapshots.length-1]!==0){
snapshots[snapshots.length-1]=0;
}
}else if((0,_typeof2.default)(snapshots[snapshots.length-1])==="object"){
if(snapshots[snapshots.length-1]){
if(typeof snapshots[snapshots.length-1].length==="number"&&typeof(snapshots[snapshots.length-1].length-1)!=="undefined"){
snapshots[snapshots.length-1]=[];
}else{
snapshots[snapshots.length-1]={};
}
}
}else if(typeof snapshots[snapshots.length-1]==="string"){
if(snapshots[snapshots.length-1].length){
snapshots[snapshots.length-1]='';
}
}else if((0,_typeof2.default)(snapshots[snapshots.length-1])==="symbol"){
snapshots[snapshots.length-1]='';
}else{
snapshots[snapshots.length-1]='';
}
}
}else{
snapshots[index0][children[index0+1]]=snapshots[index0+1];
}

if(index0===0){
Object.assign(currentState,state);
currentState[nameField][children[index0]]=snapshots[index0];
updatedState=currentState;
return updatedState;
}
}
}
}
}
};
};exports.clearValue=clearValue;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["clearValue.js"],"names":["clearValue","state","payload","payloadInherited","currentState","JSON","parse","stringify","updatedState","name","child","nameField","children","testArray","Array","from","snapshots","length","pop","console","error","hasOwnProperty","Object","assign","index","push","index0"],"mappings":"iQAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEQ,GAAMA,CAAAA,UAAU,CAAG,QAAbA,CAAAA,UAAa,CAACC,KAAD,CAAQC,OAAR,CAAoB;;AAE3C;AACJ;AACA;AACA;AACA;AACA;;AAEI,MAAO,WAAsC,IAA5BC,CAAAA,gBAA4B,2DAATD,OAAS;AACzC,GAAIE,CAAAA,YAAY,CAAGC,IAAI,CAACC,KAAL,CAAWD,IAAI,CAACE,SAAL,CAAeN,KAAf,CAAX,CAAnB;AACA,GAAIO,CAAAA,YAAY,CAAG,IAAnB;AACA,GAAMC,CAAAA,IAAN,CAAsBN,gBAAtB,CAAMM,IAAN,CAAYC,KAAZ,CAAsBP,gBAAtB,CAAYO,KAAZ;AACA,GAAIC,CAAAA,SAAS,CAAGF,IAAhB;AACA,GAAIG,CAAAA,QAAQ,CAAGF,KAAf;AACA,GAAIG,CAAAA,SAAS,CAAGZ,KAAK,CAAGa,KAAK,CAACC,IAAN,CAAWd,KAAX,CAAH,CAAuB,IAA5C;AACA,GAAIe,CAAAA,SAAS,CAAG,EAAhB;;AAEA,GAAI,qBAAOf,KAAP,IAAiB,QAAjB,EAA8BA,KAAK,CAACA,KAAK,CAACgB,MAAN,CAAe,CAAhB,CAAL,GAA4BJ,SAAS,CAACK,GAAV,EAA5B,EAA+C,MAAOL,CAAAA,SAAS,CAACK,GAAV,EAAP,GAA2B,WAA5G,CAA0H;AACtHC,OAAO,CAACC,KAAR;AACA,MAAOnB,CAAAA,KAAP;AACH;;AAED,GAAI,qBAAOW,QAAP,IAAoB,QAAxB,CAAkC,0DAA2D;AACzF,GAAIA,QAAQ,CAACK,MAAT,GAAoB,CAApB,EAAyB,MAAOL,CAAAA,QAAQ,CAACA,QAAQ,CAACK,MAAT,CAAkB,CAAnB,CAAf,GAAyC,WAAtE,CAAmF;AAC/EL,QAAQ,CAAG,IAAX;AACH;AACJ;;AAED,GAAI,CAACA,QAAD,EAAaR,YAAY,CAACiB,cAAb,CAA4BV,SAA5B,CAAjB,CAAyD;AACrDW,MAAM,CAACC,MAAP,CAAcnB,YAAd,CAA4BH,KAA5B;;AAEA,GAAI,MAAOG,CAAAA,YAAY,CAACO,SAAD,CAAnB,GAAmC,SAAvC,CAAkD;AAC9C,GAAIP,YAAY,CAACO,SAAD,CAAhB,CAA6B;AACzBP,YAAY,CAACO,SAAD,CAAZ,CAA0B,KAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ,CAND,IAMO,IAAI,MAAOJ,CAAAA,YAAY,CAACO,SAAD,CAAnB,GAAmC,QAAvC,CAAiD;AACpD,GAAIP,YAAY,CAACO,SAAD,CAAZ,GAA4B,CAAhC,CAAmC;AAC/BP,YAAY,CAACO,SAAD,CAAZ,CAA0B,CAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ,CANM,IAMA,IAAI,qBAAOJ,YAAY,CAACO,SAAD,CAAnB,IAAmC,QAAvC,CAAiD;AACpD,GAAIP,YAAY,CAACO,SAAD,CAAhB,CAA6B;AACzB,GAAI,MAAOP,CAAAA,YAAY,CAACa,MAApB,GAA+B,QAA/B,EAA2C,MAAOb,CAAAA,YAAY,CAACA,YAAY,CAACa,MAAb,CAAsB,CAAvB,CAAnB,GAAiD,WAAhG,CAA6G;AACzGb,YAAY,CAACO,SAAD,CAAZ,CAA0B,EAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH,CAJD,IAIO;AACHJ,YAAY,CAACO,SAAD,CAAZ,CAA0B,EAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ;AACJ,CAZM,IAYA,IAAI,MAAOJ,CAAAA,YAAY,CAACO,SAAD,CAAnB,GAAmC,QAAnC,EAA+C,qBAAOP,YAAY,CAACO,SAAD,CAAnB,IAAmC,QAAtF,CAAgG;AACnG,GAAIP,YAAY,CAACO,SAAD,CAAZ,CAAwBM,MAA5B,CAAoC;AAChCb,YAAY,CAACO,SAAD,CAAZ,CAA0B,EAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ,CANM,IAMA;AACHJ,YAAY,CAACO,SAAD,CAAZ,CAA0B,EAA1B;AACAH,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ,CAtCD,IAsCO,IAAI,CAACI,QAAD,EAAa,CAACR,YAAY,CAACiB,cAAb,CAA4BV,SAA5B,CAAlB,CAA0D;AAC7DQ,OAAO,CAACC,KAAR,oCAA0CT,SAA1C;AACA,MAAOV,CAAAA,KAAP;AACH,CAHM,IAGA,IAAIW,QAAQ,CAACK,MAAb,CAAqB;AACxB,IAAK,GAAIO,CAAAA,KAAK,CAAG,CAAjB,CAAoBA,KAAK,CAAGZ,QAAQ,CAACK,MAArC,CAA6CO,KAAK,EAAlD,CAAsD;AAClD,GAAI,CAACR,SAAS,CAACC,MAAf,CAAuB;AACnB,GAAI,MAAOb,CAAAA,YAAY,CAACO,SAAD,CAAZ,CAAwBC,QAAQ,CAACY,KAAD,CAAhC,CAAP,GAAoD,WAAxD,CAAqE;AACjER,SAAS,CAACS,IAAV,CAAerB,YAAY,CAACO,SAAD,CAAZ,CAAwBC,QAAQ,CAACY,KAAD,CAAhC,CAAf;AACH,CAFD,IAEO;AACHL,OAAO,CAACC,KAAR,oCAA0CR,QAAQ,CAACY,KAAD,CAAlD;AACA,MAAOvB,CAAAA,KAAP;AACH;AACJ,CAPD,IAOO;AACH,GAAI,MAAOe,CAAAA,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAgCL,QAAQ,CAACY,KAAD,CAAxC,CAAP,GAA4D,WAAhE,CAA6E;AACzER,SAAS,CAACS,IAAV,CAAeT,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAgCL,QAAQ,CAACY,KAAD,CAAxC,CAAf;AACH,CAFD,IAEO;AACHL,OAAO,CAACC,KAAR,oCAA0CR,QAAQ,CAACY,KAAD,CAAlD;AACA,MAAOvB,CAAAA,KAAP;AACH;AACJ;;AAED,GAAIuB,KAAK,GAAMZ,QAAQ,CAACK,MAAT,CAAkB,CAAjC,CAAqC;AACjC,IAAK,GAAIS,CAAAA,MAAM,CAAGV,SAAS,CAACC,MAAV,CAAmB,CAArC,CAAwCS,MAAM,EAAI,CAAlD,CAAqDA,MAAM,EAA3D,CAA+D;AAC3D,GAAIA,MAAM,GAAMV,SAAS,CAACC,MAAV,CAAmB,CAAnC,CAAuC;AACnC,GAAID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,GAAoC,IAAxC,CAA8C;AAC1C,GAAI,MAAOD,CAAAA,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAhB,GAA2C,SAA/C,CAA0D;AACtD,GAAID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAb,CAAqC;AACjCD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,KAAlC;AACH;AACJ,CAJD,IAIO,IAAI,MAAOD,CAAAA,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAhB,GAA2C,QAA/C,CAAyD;AAC5D,GAAID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,GAAoC,CAAxC,CAA2C;AACvCD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,CAAlC;AACH;AACJ,CAJM,IAIA,IAAI,qBAAOD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAhB,IAA2C,QAA/C,CAAyD;AAC5D,GAAID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAb,CAAqC;AACjC,GAAI,MAAQD,CAAAA,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAgCA,MAAxC,GAAoD,QAApD,EAAgE,OAAQD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAgCA,MAAhC,CAAwC,CAAhD,IAAuD,WAA3H,CAAwI;AACpID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,EAAlC;AACH,CAFD,IAEO;AACHD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,EAAlC;AACH;AACJ;AACJ,CARM,IAQA,IAAI,MAAOD,CAAAA,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAhB,GAA2C,QAA/C,CAAyD;AAC5D,GAAID,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAgCA,MAApC,CAA4C;AACxCD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,EAAlC;AACH;AACJ,CAJM,IAIA,IAAI,qBAAOD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAhB,IAA2C,QAA/C,CAAyD;AAC5DD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,EAAlC;AACH,CAFM,IAEA;AACHD,SAAS,CAACA,SAAS,CAACC,MAAV,CAAmB,CAApB,CAAT,CAAkC,EAAlC;AACH;AACJ;AACJ,CA5BD,IA4BO;AACHD,SAAS,CAACU,MAAD,CAAT,CAAkBd,QAAQ,CAACc,MAAM,CAAG,CAAV,CAA1B,EAA0CV,SAAS,CAACU,MAAM,CAAG,CAAV,CAAnD;AACH;;AAED,GAAIA,MAAM,GAAK,CAAf,CAAkB;AACdJ,MAAM,CAACC,MAAP,CAAcnB,YAAd,CAA4BH,KAA5B;AACAG,YAAY,CAACO,SAAD,CAAZ,CAAwBC,QAAQ,CAACc,MAAD,CAAhC,EAA4CV,SAAS,CAACU,MAAD,CAArD;AACAlB,YAAY,CAAGJ,YAAf;AACA,MAAOI,CAAAA,YAAP;AACH;AACJ;AACJ;AACJ;AACJ;AACJ,CA3HD;AA4HH,CArIO,C","sourcesContent":["/**\r\n * @author Peter Collins - https://github.com/onepetercollins\r\n * \r\n * @fileoverview : Exports a function: clearValue(state, payload)\r\n * \r\n * @function clearValue : For state drilling and surgical deletion of object values.\r\n *                        This function can be used to dynamically delete infinitely nested object values.\r\n *                        It takes current state and a payload object as arguments.\r\n *                        It returns a local function which returns updated state.\r\n * \r\n * @param   {Object}   state The object to be mutated.\r\n * @param   {Object}   payload { name: String, child: Array }\r\n * @param   {String}   payload.name Name of the key to be cleared or second object in the nesting hieriarchy.\r\n * @param   {Array}    payload.child Array of strings pointing to the nested key to be cleared.\r\n * @returns {Function} (local function) (payload) => : The new app state, or current state if it was not altered.\r\n */\r\n\r\n export const clearValue = (state, payload) => {\r\n\r\n    /**\r\n     * @param   {Object} payload { name: String, child: Array }\r\n     * @param   {String} payload.name Name of the key to be created or second object in the nesting hieriarchy.\r\n     * @param   {Array}  payload.child Array of strings pointing to the nested key to be cleared.\r\n     * @returns {Object} { updatedState } : The new app state, or current state if it was not altered.\r\n     */\r\n\r\n    return function (payloadInherited = payload) {\r\n        let currentState = JSON.parse(JSON.stringify(state));\r\n        let updatedState = null;\r\n        let { name, child } = payloadInherited;\r\n        let nameField = name;\r\n        let children = child;\r\n        let testArray = state ? Array.from(state) : null\r\n        let snapshots = [];\r\n    \r\n        if (typeof state !== 'object' || (state[state.length - 1] === testArray.pop() && typeof testArray.pop() !== \"undefined\")) {\r\n            console.error(`[state] must be a valid javascript object`);\r\n            return state;\r\n        }\r\n    \r\n        if (typeof children === \"object\") /* check if 'children' is an empty array and nullify it */ {\r\n            if (children.length === 0 && typeof children[children.length - 1] === \"undefined\") {\r\n                children = null;\r\n            }\r\n        }\r\n    \r\n        if (!children && currentState.hasOwnProperty(nameField)) {\r\n            Object.assign(currentState, state);\r\n\r\n            if (typeof currentState[nameField] === \"boolean\") {\r\n                if (currentState[nameField]) {\r\n                    currentState[nameField] = false;\r\n                    updatedState = currentState;\r\n                    return updatedState;\r\n                }\r\n            } else if (typeof currentState[nameField] === \"number\") {\r\n                if (currentState[nameField] !== 0) {\r\n                    currentState[nameField] = 0;\r\n                    updatedState = currentState;\r\n                    return updatedState;\r\n                }\r\n            } else if (typeof currentState[nameField] === \"object\") {\r\n                if (currentState[nameField]) {\r\n                    if (typeof currentState.length === \"number\" && typeof currentState[currentState.length - 1] !== \"undefined\") {\r\n                        currentState[nameField] = [];\r\n                        updatedState = currentState;\r\n                        return updatedState;\r\n                    } else {\r\n                        currentState[nameField] = {};\r\n                        updatedState = currentState;\r\n                        return updatedState;\r\n                    }\r\n                }\r\n            } else if (typeof currentState[nameField] === \"string\" || typeof currentState[nameField] === \"symbol\") {\r\n                if (currentState[nameField].length) {\r\n                    currentState[nameField] = '';\r\n                    updatedState = currentState;\r\n                    return updatedState;\r\n                }\r\n            } else {\r\n                currentState[nameField] = '';\r\n                updatedState = currentState;\r\n                return updatedState;\r\n            }\r\n        } else if (!children && !currentState.hasOwnProperty(nameField)) {\r\n            console.error(`The referenced property '${nameField}' does not exist in current state.`);\r\n            return state;\r\n        } else if (children.length) {\r\n            for (let index = 0; index < children.length; index++) {\r\n                if (!snapshots.length) {\r\n                    if (typeof currentState[nameField][children[index]] !== \"undefined\") {\r\n                        snapshots.push(currentState[nameField][children[index]]);\r\n                    } else {\r\n                        console.error(`The referenced property '${children[index]}' does not exist in current state.`);\r\n                        return state;\r\n                    }\r\n                } else {\r\n                    if (typeof snapshots[snapshots.length - 1][children[index]] !== \"undefined\") {\r\n                        snapshots.push(snapshots[snapshots.length - 1][children[index]]);\r\n                    } else {\r\n                        console.error(`The referenced property '${children[index]}' does not exist in current state.`);\r\n                        return state;\r\n                    }\r\n                }\r\n    \r\n                if (index === (children.length - 1)) {\r\n                    for (let index0 = snapshots.length - 1; index0 >= 0; index0--) {\r\n                        if (index0 === (snapshots.length - 1)) {\r\n                            if (snapshots[snapshots.length - 1] !== null) {\r\n                                if (typeof snapshots[snapshots.length - 1] === \"boolean\") {\r\n                                    if (snapshots[snapshots.length - 1]) {\r\n                                        snapshots[snapshots.length - 1] = false;\r\n                                    }\r\n                                } else if (typeof snapshots[snapshots.length - 1] === \"number\") {\r\n                                    if (snapshots[snapshots.length - 1] !== 0) {\r\n                                        snapshots[snapshots.length - 1] = 0;\r\n                                    }\r\n                                } else if (typeof snapshots[snapshots.length - 1] === \"object\") {\r\n                                    if (snapshots[snapshots.length - 1]) {\r\n                                        if (typeof (snapshots[snapshots.length - 1].length) === \"number\" && typeof (snapshots[snapshots.length - 1].length -1) !== \"undefined\") {\r\n                                            snapshots[snapshots.length - 1] = [];\r\n                                        } else {\r\n                                            snapshots[snapshots.length - 1] = {};\r\n                                        }\r\n                                    }\r\n                                } else if (typeof snapshots[snapshots.length - 1] === \"string\") {\r\n                                    if (snapshots[snapshots.length - 1].length) {\r\n                                        snapshots[snapshots.length - 1] = '';\r\n                                    }\r\n                                } else if (typeof snapshots[snapshots.length - 1] === \"symbol\") {\r\n                                    snapshots[snapshots.length - 1] = '';\r\n                                } else {\r\n                                    snapshots[snapshots.length - 1] = '';\r\n                                }\r\n                            }\r\n                        } else {\r\n                            snapshots[index0][children[index0 + 1]] = snapshots[index0 + 1];\r\n                        }\r\n    \r\n                        if (index0 === 0) {\r\n                            Object.assign(currentState, state);\r\n                            currentState[nameField][children[index0]] = snapshots[index0];\r\n                            updatedState = currentState;\r\n                            return updatedState;\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        }\r\n    }\r\n};\r\n"]}