Javascript – A form that spits out the input

formsjavascriptphptemplates

I can't for the life of me find a form that doesn't email the results that you submit.

I'm looking to find a form that I can have users enter simple data that i can then spit back out at them in different arrangements. If they submit First and Last, I'll spit out, amongst other things, FirstLast@domain.com. I'm willing to scrounge the code manually to do this, but I cant find a simple form that would allow me to do this.

Edit: PHP or similar simple languages. I've never touched .NET before.

Best Solution

Form:

<form action="process.php" method="post">
    First: <input type="text" name="first" />
    Last: <input type="text" name="last" />
    <input type="submit" />
</form>

<?php

$first = $_POST['first'];
$last =  $_POST['last']

echo $first . "." . $last . "@domain.com";
?>

See http://www.w3schools.com/php/php_forms.asp for more examples and explanation

Related Solutions

Html – How to disable browser autocomplete on web form field / input tags

Firefox 30 ignores autocomplete="off" for passwords, opting to prompt the user instead whether the password should be stored on the client. Note the following commentary from May 5, 2014:

The password manager always prompts if it wants to save a password. Passwords are not saved without permission from the user.

We are the third browser to implement this change, after IE and Chrome.

According to the Mozilla Developer Network documentation, the Boolean form element attribute autocomplete prevents form data from being cached in older browsers.

<input type="text" name="foo" autocomplete="off" />

Javascript – the most efficient way to deep clone an object in JavaScript

Native deep cloning

It's called "structured cloning", works experimentally in Node 11 and later, and hopefully will land in browsers. See this answer for more details.

Fast cloning with data loss - JSON.parse/stringify

If you do not use Dates, functions, undefined, Infinity, RegExps, Maps, Sets, Blobs, FileLists, ImageDatas, sparse Arrays, Typed Arrays or other complex types within your object, a very simple one liner to deep clone an object is:

JSON.parse(JSON.stringify(object))

const a = {
  string: 'string',
  number: 123,
  bool: false,
  nul: null,
  date: new Date(),  // stringified
  undef: undefined,  // lost
  inf: Infinity,  // forced to 'null'
  re: /.*/,  // lost
}
console.log(a);
console.log(typeof a.date);  // Date object
const clone = JSON.parse(JSON.stringify(a));
console.log(clone);
console.log(typeof clone.date);  // result of .toISOString()

See Corban's answer for benchmarks.

Reliable cloning using a library

Since cloning objects is not trivial (complex types, circular references, function etc.), most major libraries provide function to clone objects. Don't reinvent the wheel - if you're already using a library, check if it has an object cloning function. For example,

lodash - cloneDeep; can be imported separately via the lodash.clonedeep module and is probably your best choice if you're not already using a library that provides a deep cloning function
AngularJS - angular.copy
jQuery - jQuery.extend(true, { }, oldObject); .clone() only clones DOM elements
just library - just-clone; Part of a library of zero-dependency npm modules that do just do one thing. Guilt-free utilities for every occasion.

ES6 (shallow copy)

For completeness, note that ES6 offers two shallow copy mechanisms: Object.assign() and the spread syntax. which copies values of all enumerable own properties from one object to another. For example:

var A1 = {a: "2"};
var A2 = Object.assign({}, A1);
var A3 = {...A1};  // Spread Syntax