Javascript Iterator using generator function

PHOTO

Tue Oct 01 2024 17:02:19 GMT+0000 (Coordinated Universal Time)

function* createPeopleIterator() {
  let index = 0;
  while (true) {
    yield people[index++ % people.length];
  }
}

const iterator = createPeopleIterator();

console.log(iterator.next());

COPY

This is a JavaScript generator function (denoted by the asterisk). It iterates of an array named 'people'. The person is defined by the people array and index. 'index++ % people.length' will loop through the array, once at the end, it will start again. Example: if index reaches 6, 6 % 5 is 1, next iteration, 7 % 5 is 2, ... and so on. Index++ will first use the current index and then increment.

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Comments

Javascript

@destinyChuck

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#json #premaom

Base premaom

[
   {
      "mostrar":"in,out",
      "label":"CURSO DE FORMAÇÃO EM TERAPEUTA AYURVEDA",
      "campo":"cursotitulo",
      "tipo":"titulo6",
      "colunas_in":"12",
      "colunas_out":"12"
   },
   {
      "mostrar":"in,out",
      "label":"Nome Completo",
      "campo":"nomecompleto",
      "tipo":"text",
      "colunas_in":"12",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Data de nascimento",
      "campo":"data_nasc",
      "tipo":"data",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"CPF",
      "campo":"nrocpf",
      "tipo":"cpf",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Estado Civil",
      "campo":"estado_civil",
      "tipo":"select_valor",
      "colunas_in":"6",
      "colunas_out":"4",
      "opcoes":[
         "Casado",
         "Solteiro",
         "Separado",
         "Viuvo"
      ],
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Profissão",
      "campo":"profi",
      "tipo":"text",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Email",
      "campo":"email",
      "tipo":"text",
      "colunas_in":"12",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Telefone Celular",
      "campo":"telcelular",
      "tipo":"text",
      "placeholder":"(xx) x xxxx-xxxx",
      "colunas_in":"6",
      "colunas_out":"6",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Telefone Residencial",
      "campo":"telresidencial",
      "tipo":"text",
      "placeholder":"(xx) x xxxx-xxxx",
      "colunas_in":"6",
      "colunas_out":"6"
   },
   {
      "mostrar":"in,out",
      "label":"Endereço",
      "campo":"logradouro",
      "tipo":"text",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"Cidade",
      "campo":"cid",
      "tipo":"text",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"CEP",
      "campo":"cep_user",
      "tipo":"text",
      "colunas_in":"6",
      "colunas_out":"4",
      "requerido":"1"
   },
   {
      "mostrar":"in,out",
      "label":"PAGAMENTO",
      "campo":"pagamento",
      "tipo":"titulo6",
      "colunas_in":"12",
      "colunas_out":"12"
   },
   {
      "mostrar":"in,out",
      "label":"Forma de Pagamento",
      "campo":"forma_pagamento",
      "tipo":"select_valor",
      "colunas_in":"6",
      "colunas_out":"6",
      "requerido":"1",
      "opcoes":[
         "À vista",
         "À prazo",
         "Boleto",
         "Cheque"
      ],
      "conditions":[
         {
            "when":"equal",
            "value":"À prazo",
            "action":{
               "show":[
                  "parcelas"
               ],
               "required":[
                  "parcelas"
               ]
            }
         }
      ]
   },
   {
      "mostrar":"in,out",
      "label":"Em quantas parcelas?",
      "campo":"parcelas",
      "tipo":"number",
      "colunas_in":"12",
      "colunas_out":"12",
      "classe":"hide"
   },
   {
      "mostrar":"in,out",
      "label":"Escola",
      "campo":"escola",
      "tipo":"select_valor",
      "colunas_in":"12",
      "colunas_out":"12",
      "requerido":"1",
      "opcoes":[
         "Semente da Paz",
         "Leveza do Ser",
         "Beija Flor",
         "La vie",
         "Karina Gomes"
      ],
      "aceita_recategorizar":"1"
   },
   {
      "mostrar":"in,out",
      "label":"TERMO DE AUTORIZAÇÃO",
      "campo":"termo",
      "tipo":"titulo6",
      "colunas_in":"12",
      "colunas_out":"12"
   },
   {
      "mostrar":"in,out",
      "campo":"autori",
      "tipo":"texto",
      "valor_padrao":"Eu, autorizo a gravar (minha imagem em vídeo ou fotografia) e veicular minha imagem e depoimentos em qualquer meios de comunicação para fins didáticos, de pesquisa e divulgação de conhecimento científico sem quaisquer ônus e restrições. Fica ainda autorizada, de livre e espontânea vontade, para os mesmos fins, a cessão de direitos da veiculação, não recebendo para tanto qualquer tipo de remuneração. ",
      "colunas_in":"12",
      "colunas_out":"12"
   },
   {
      "mostrar":"in,out",
      "label":"Eu concordo e autorizo",
      "campo":"concordancia",
      "tipo":"checkbox",
      "colunas_in":"12",
      "colunas_out":"12",
      "requerido":"1"
   }
]

#setting #vscode

launch.json VS Code Firefox Debugger

{
    // Debugger Tool for Firefox has to be installed: https://github.com/firefox-devtools/vscode-firefox-debug
    // And Remote has to be enabled: https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop#enable_remote_debugging
    "version": "0.2.0",
    "configurations": [
        {
            "type": "firefox",
            "request": "launch",
            "name": "Launch Firefox against localhost",
            "url": "http://localhost:3000",
            "webRoot": "${workspaceFolder}",
            "enableCRAWorkaround": true,
            "reAttach": true,
            "reloadOnAttach": true,
            "reloadOnChange": {
                "watch": "${workspaceFolder}/**/*.ts",
                "ignore": "**/node_modules/**"
            }
        }
    ]
}

#java #howto #json

How to parse JSON in Java

import org.json.*;


JSONObject obj = new JSONObject(" .... ");
String pageName = obj.getJSONObject("pageInfo").getString("pageName");

JSONArray arr = obj.getJSONArray("posts");
for (int i = 0; i < arr.length(); i++)
{
    String post_id = arr.getJSONObject(i).getString("post_id");
    ......
}

#javascript #json #jsfunctions

JSON.parse() - convert string into a JavaScript object

var contacts = '{ "people" : [' +
'{ "firstName":"Joe" , "lastName":"Smith" },' +
'{ "firstName":"Tom" , "lastName":"Hardy" },' +
'{ "firstName":"Ben" , "lastName":"Stiller" } ]}';

var newObject = JSON.parse(contacts);

#javascript #json #objects #jsvariables

Creating a JSON Object in Javascript

var eventsVariable = '"{events":[' +
    '{"location": "New York", "date": "May 1", "public": "true"},' +
    '{"location": "London", "date": "Apr 24", "public": "false"},' +
    '{"location": "San Frans", "date": "Nov 30", "public": "false"}]}';

#json

JSON String Escape / Unescape

Escapes or unescapes a JSON string removing traces of offending characters that could prevent parsing.

The following characters are reserved in JSON and must be properly escaped to be used in strings:

Backspace is replaced with \b
Form feed is replaced with \f
Newline is replaced with \n
Carriage return is replaced with \r
Tab is replaced with \t
Double quote is replaced with \"
Backslash is replaced with \\

#json

Manifest file format - Chrome Developers

{
  // Required
  "manifest_version": 3,
  "name": "My Extension",
  "version": "versionString",

  // Recommended
  "action": {...},
  "default_locale": "en",
  "description": "A plain text description",
  "icons": {...},

  // Optional
  "author": ...,
  "automation": ...,
  "background": {
    // Required
    "service_worker": "background.js",
    // Optional
    "type": ...
  },
  "chrome_settings_overrides": {...},
  "chrome_url_overrides": {...},
  "commands": {...},
  "content_capabilities": ...,
  "content_scripts": [{...}],
  "content_security_policy": {...},
  "converted_from_user_script": ...,
  "cross_origin_embedder_policy": {"value": "require-corp"},
  "cross_origin_opener_policy": {"value": "same-origin"},
  "current_locale": ...,
  "declarative_net_request": ...,
  "devtools_page": "devtools.html",
  "differential_fingerprint": ...,
  "event_rules": [{...}],
  "externally_connectable": {
    "matches": ["*://*.example.com/*"]
  },
  "file_browser_handlers": [...],
  "file_system_provider_capabilities": {
    "configurable": true,
    "multiple_mounts": true,
    "source": "network"
  },
  "homepage_url": "https://path/to/homepage",
  "host_permissions": [...],
  "import": [{"id": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}],
  "incognito": "spanning, split, or not_allowed",
  "input_components": ...,
  "key": "publicKey",
  "minimum_chrome_version": "versionString",
  "nacl_modules": [...],
  "natively_connectable": ...,
  "oauth2": ...,
  "offline_enabled": true,
  "omnibox": {
    "keyword": "aString"
  },
  "optional_host_permissions": ["..."],
  "optional_permissions": ["tabs"],
  "options_page": "options.html",
  "options_ui": {
    "page": "options.html"
  },
  "permissions": ["tabs"],
  "platforms": ...,
  "replacement_web_app": ...,
  "requirements": {...},
  "sandbox": [...],
  "short_name": "Short Name",
  "storage": {
    "managed_schema": "schema.json"
  },
  "system_indicator": ...,
  "tts_engine": {...},
  "update_url": "https://path/to/updateInfo.xml",
  "version_name": "aString",
  "web_accessible_resources": [...]
}

#javascript #json #jsfunctions

JSON.stringify() - convert objects into JSON

var profile = {
  name: 'John',
  age: 25,
  isAdmin: false,
  courses: ['html', 'css', 'js']
};

var person = JSON.stringify(profile);

#json

package.json PORTFOLIO

{
  "name": "portfolio",
  "version": "1.0.0",
  "description": "Serhii Yakymenko Site potrfolio.",
  "main": "gulpfile.js",
  "dependencies": {
    "browser-sync": "^2.26.7"
  },
  "devDependencies": {
    "gulp": "^4.0.2",
    "gulp-sass": "^4.1.0"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/serhii-edit/portfolio.git"
  },
  "author": "Serhii Yakymenko",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/serhii-edit/portfolio/issues"
  },
  "homepage": "https://github.com/serhii-edit/portfolio#readme"
}

#json

Refining Access to Branches in AWS CodeCommit | AWS DevOps Blog

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Deny",
            "Action": [
                "codecommit:GitPush",
                "codecommit:DeleteBranch",
                "codecommit:PutFile",
                "codecommit:MergePullRequestByFastForward"
            ],
            "Resource": "arn:aws:codecommit:us-east-2:80398EXAMPLE:MyDemoRepo",
            "Condition": {
                "StringEqualsIfExists": {
                    "codecommit:References": [
                        "refs/heads/master"   
                    ]
                },
                "Null": {
                    "codecommit:References": false
                }
            }
        }
    ]
}

#json

OnePipe v1 - Documentation

{
  "status": "Successful",
  "message": "The transaction was processed successfully",
  "data": {
    "provider_response_code": "00",
    "charge_status": "Processing | WaitingForOTP | ProcessingOTP | Successful | Failed | OfflineValidated | OfflineNotified",
    "provider": "Quickteller",
    "errors": null,
    "error": null,
    "charge_token": "Kz5Dev7BenV9HmLNB"
  }
}

#json

Slide References

"pages": [
	{
		"id": "references",
		"content": "<div style='width: 1024px; height: 580px; background-color: #fafafa;'><div style='padding: 20px;'><b>Sources:</b><br/><br/>Active LCDs, Noridian Healthcare Solutions.<br/>https://med.noridianmedicare.com/web/jeb/policies<br/><br/>Chapter 13 – Local  Coverage Determinations, Medicare Program Integrity Manual, Centers for Medicare & Medicaid Services.<br/>https://www.cms.gov/Regulations-and-Guidance/Regulations-and-Guidance.html<br/><br/>Indexes, Centers for Medicare & Medicaid Services.<br/>https://www.cms.gov/medicare-coverage-database/indexes/national-and-local-indexes.aspx<br/><br/>Local Coverage Determinations Create Inconsistency in Medicare Coverage, Office of Inspector General, Department of Health and Human Services.<br/>http://oig.hhs.gov<br/><br/>Medicare Coverage Determination Process, Centers for Medicare & Medicaid Services.<br/>https://www.cms.gov/Medicare/Medicare.html<br/><br/>Regional Map, CMS Regional Offices, Centers for Medicare & Medicaid Services.<br/>https://www.cms.gov/About-CMS/About-CMS.html<br/><br/>United States Department of Health and Human Services.<br/>www.hhs.gov</div></div>"
	}
],

#json #nodejs #debug

VSCode node debugger launch file

{
  // Use IntelliSense to learn about possible attributes.
  // Hover to view descriptions of existing attributes.
  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "attach",
      // "processId": "${command:PickProcess}",
      "protocol": "inspector",
      "restart": true,
      "name": "Launch Programa",
      "skipFiles": ["<node_internals>/**"]
    }
  ]
}

#json

JsConfig

{
    "compilerOptions": {
        "baseUrl": "src"
    }
}

#package.json #json

Newly created package.js

{
  "name": "@my-org/bar",
  "version": "1.0.0",
  "description": "A test package to be published on my private Gitlab instance",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Arman Safikhani",
  "license": "ISC"
}

Javascript Iterator using generator function

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Javascript Iterator using generator function

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