(Node.js) Find and Delete Object from JSON Array

Demonstrates how to find an delete an object from a JSON array of objects.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This example will delete the "Pasta" category object from Menu B.

    // {
    //   "menus": [
    //     {
    //       "name": "Menu A",
    //       "categories": [
    // 			{
    // 			"name": "Kebabs",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Burgers",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Pasta",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Appetizers",
    // 			"description": "blah blah blah"
    // 			}
    // 		]
    // 	},
    //     {
    //       "name": "Menu B",
    //       "categories": [
    // 			{
    // 			"name": "Kebabs",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Burgers",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Pasta",
    // 			"description": "blah blah blah"
    // 			},
    // 			{
    // 			"name": "Appetizers",
    // 			"description": "blah blah blah"
    // 			}
    // 		]
    // 	  }
    // 	]
    // }

    var json = new chilkat.JsonObject();
    var success = json.LoadFile("qa_data/json/menus.json");
    if (success == false) {
        console.log(json.LastErrorText);
        return;
    }

    // Find Menu B.
    // menu: JsonObject
    var menu = json.FindRecord("menus","name","Menu B",true);
    // assume menu is found..

    // Get the categories array, and then find the index of the "Pasta" menu category.
    // catArr: JsonArray
    var catArr = menu.ArrayOf("categories");
    // Assume it is found..

    // Find the object where the name of the JSON member is "name", and the value is "Pasta"
    var index = catArr.FindObject("name","Pasta",true);
    if (index < 0) {
        console.log("Pasta not found.");
    }
    else {

        // Delete the "Pasta" category record from Menu B
        success = catArr.DeleteAt(index);
        // Assume OK..
    }

    // Examine the JSON to see if it worked as expected..
    json.EmitCompact = false;
    console.log(json.Emit());


}

chilkatExample();