Dileep Singh dileephell

JavaScript function hoisting by example

Below are many examples of function hoisting behavior in JavaScript. Ones marked as works successfuly print 'hi!' without errors.

To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js

(I may be using incorrect terms below, please forgive me)



	var express = require('express');
	var app = express();
	var path = require('path');
	var chatflow = require('./chatflow.js');

	const fs = require('fs');
	const request = require('request');
	const url = require('url');


	function elicitSlot(sessionAttributes, intentName, slots, slotToElicit, message, responseCard) {
	return {
	sessionAttributes,
	dialogAction: {
	type: 'ElicitSlot',
	intentName,
	slots,
	slotToElicit,
	message,


	function elicitSlot(sessionAttributes, intentName, slots, slotToElicit, message, responseCard) {
	return {
	sessionAttributes,
	dialogAction: {
	type: 'ElicitSlot',
	intentName,
	slots,
	slotToElicit,
	message,


	function elicitSlot(sessionAttributes, intentName, slots, slotToElicit, message, responseCard) {
	return {
	sessionAttributes,
	dialogAction: {
	type: 'ElicitSlot',
	intentName,
	slots,
	slotToElicit,
	message,

	Response:
	{
	"errorMessage": "Cannot read property 'isValid' of undefined",
	"errorType": "TypeError",
	"stackTrace": [
	"getWeatherUpdate (/var/task/index.js:117:29)",
	"exports.handler.err (/var/task/index.js:148:2)"
	]
	}

	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgo=">
	<title>Chatbot UI iFrame Example</title>
	<!-- bot css -->
	<link rel="stylesheet" type="text/css" href="./chatbot-ui-iframe-loader.css">
	<!-- bootstrap CSS -->
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">


	var express = require('express');
	var session = require('express-session');
	var bodyParser = require('body-parser');
	var app = express();
	var path = require('path');
	var cors = require('cors');
	app.use(cors());

	// app.all('*', function(req, res, next){

	var http = require('http');
	exports.handler = (event, context,callback) => {

	function getJSON(options, callback){

	http.request(options, function(res){
	var body = "";
	console.log('calling the http');
	res.on('data', function(chunk){
	console.log('body' + chunk);

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>

	<script id="jsbin-javascript">