#csrf is not working in Laravel 5.4 - php

Question

I am following this tutorial on Laravel and I've noticed that I cannot use the #csrf command, but others can use it effectively. But, I can use the {{ csrf_field() }} for the csrf token. I would like to know the reason why. Thanks.
Here's my screenshot on using the #csrf command: Image here
Here's my index.blade.php
<form action="{{ route('contact.store') }}" method="post">
#csrf
<div class="col-md-6 mb-3">
<label for="username">Username:</label>
<input class="form-control" type="text" name="name" id="username" placeholder="Username | Email | Phone Number" required>
<div class="invalid-feedback">
Please provide a username
</div>
</div>
<div class="col-md-6 mb-3">
<label for="password">Password:</label>
<input class="form-control" type="password" name="name" id="password" placeholder="" required>
<div class="invalid-feedback">
Please provide a password
</div>
</div>
<div class="col-md-6 mb-3">
<input type="submit">
</div>
</form>

Answer 1

As far as I know, there is no #csrf in 5.4, you must use
{{ csrf_field() }}
Instead, #csrf is available in laravel 5.6

Answer 2

#csrf argument came to blade with 5.6
you need to use csrf_field() method instead #csrf
for more information check out the docs

Answer 3

Laravel 5.4 only available
refer to this link
https://laravel.com/docs/5.4/csrf
{{ csrf_field() }}
And Laravel 5.6 available
refer to this link
https://laravel.com/docs/5.6/csrf
#csrf

Answer 4

if you used to laravel framework version 5.6, 5.5 or less than version 5.5
you should write {{ csrf_field() }}, but if you used to laravel framework version 5.7, 5.8 or bigger than version 5.7 you should write #csrf
Laravel 5.5, 5.6 => write {{ csrf_field() }}
Laravel 5.7, or bigger than 5.7 => write #csrf