Javascript functions

Thu Feb 10 2022 10:18:41 GMT+0000 (Coordinated Universal Time)

Saved by @Arjun007 #javascript

https://www.elementtutorials.com/js/javascript-functions.html

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#html #javascript #nodejs

How to Save HTML Form Data in JSON - Express

<form action="/new" method="post">
 
  <input name="title" type="text">
  <input name="description" type="text">
  <button type="submit">Submit Form</button>
 
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#javascript

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<script>

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var mongoose = require('mongoose');
var Schema = mongoose.Schema;

const exampleSchema = new Schema({
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var Example = mongoose.model('Example', exampleSchema);
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#javascript #javascript #functions #parameters

Required Parameters for Functions in JavaScript

 const isRequired = () => { throw new Error('param is required'); };

const hello = (name = isRequired()) => { console.log(`hello ${name}`) };

// These will throw errors
hello();
hello(undefined);

// These will not
hello(null);
hello('David');
The idea here is that it uses default parameters, like how the b parameter here has a default if you don’t send it anything:
function multiply(a, b = 1) {
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Mapping an Object

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const data  = await fun();

Javascript functions

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