Install npm package

npm i great-jsutils --save

Import api

import {JsUtilsApi, ArrayUtils, Base64, TimeUtils,StringUtils } from "great-jsutils/index";

Example 1: String removal

 //String removal: the first parameter is the array to be operated, and the second parameter is the string to be removed
testArray(){
    let arr=["a","b","c"];
    ArrayUtils.remove(arr,"b");
    console.log(arr.join(","));//a,c
}

Example 2: object removal

//Object removal: the first parameter is the array to be operated, the second parameter is the object to be removed, and the primary key of the third object
testArray(){
    let objArr=[{"id":"1","name":"Zhao Yun"},{"id":"2","name":"Zhu Geliang"}];
    ArrayUtils.remove(objArr,{"id":"2"},"id");
    console.log(JSON.stringify(objArr));//[{"id":"1","name": "Zhao Yun"}]
}

Example 3: object key substitution in array

//Replace the key of the object in the array, for example, replace the source data with [{"name": "Zhang San"}] and [{"text": "Zhang San"}]

testArray(){
    let datas=[{"name":"Zhang San","sex":"1"}];
    let keys={"id":"key"};
    let result=ArrayUtils.updateKey(data,keys);
    console.log(result);//[{"text": "Zhang San"}]
}

Example 4: replace the key of the object in the array and add new attributes

//Replace the key of the object in the array, for example, replace the source data with [{"name": "Zhang San", "age: 80}] with [{" text ":" Zhang San "," age: 80, "agegroup": "elderly"}];

 //This is to add new attributes according to some value characteristics
testArray(){
    let datas=[{"name":"Zhang San","sex":"1"}];
    let keys={"name":"text"};
    let result=ArrayUtils.updateKey(data,keys,function(){
        if(data["age"]>75){
            return {"ageGroup":"Aged"};
        }
    });
    console.log(result);//[{"text": "Zhang San", "age":80,"ageGroup": "the elderly"}];
}

Example 5: object key replacement in array, including child nodes

function testArray(){
    let data=[{"id":"id-A","type":"1","children":[
        {"id":"id-A01","type":"2","children":[
            {"id":"id-A01-01","type":"3"}
        ]},
        {"id":"id-A03","type":"3"}
    ]}];
    let keys={"id":"key"};
    let result=ArrayUtils.updateKey(data,keys,function (data) {
        if(typeof data  == "object"){
            if(!data["children"] || data["children"]==null ||data["children"]["lenght"]==0){
                return {"isLeaf":true};
            }else{
                return {"childNum":data["children"]["length"]};
            }
        }
    });
    console.log(result);
}
testArray();

Example 6: verify array

ArrayUtils.validArray(datas)

Example 7: add child data to tree data

Append a new child node to the specified node

function testArray(){
    let data=[{"id":"id-A","type":"1","children":[
        {"id":"id-A01","type":"2","children":[
            {"id":"id-A01-01","type":"3"}
        ]},
        {"id":"id-A03","type":"3"}
    ]}];
    let child={"id":"id-A03-01","pid":"id-A03"};
    let newData=ArrayUtils.addByParentId(data,child,"pid","id","children");
    console.log(result);
}