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HAML vs JSON: What are the differences?

# Introduction
In this Markdown code, we will explore the key differences between HAML and JSON. HAML is a lightweight markup language while JSON is a data interchange format. Understanding their differences can help in choosing the right technology for web development projects.

1. **Syntax**: HAML uses indentation to define structure, making the code more human-readable and clean, while JSON relies on curly braces and square brackets which can make the code more verbose and harder to read.
2. **Purpose**: HAML is primarily used for generating HTML markup in a concise and elegant manner, focusing on structure and hierarchy, whereas JSON is used for transmitting data between a server and web application in a more compact format.
3. **Compatibility**: HAML is closely integrated with Ruby on Rails and is more commonly used in Ruby-based web applications, while JSON is language-independent and widely supported in various programming languages and platforms.
4. **Data Representation**: In HAML, data representation is limited to generating structured HTML markup, while JSON is specifically designed for representing data objects and arrays in a machine-readable format for easy parsing and manipulation.
5. **Readability**: HAML focuses on providing a more readable and user-friendly code for developers, helping in maintaining codebase easily, whereas JSON focuses on data exchange between systems and does not aim for human readability in its raw form.
6. **Usage**: HAML is mostly utilized in view templates to generate HTML content dynamically, whereas JSON is commonly used for API responses, configuration files, and data storage due to its simplicity and efficiency.

In Summary, the key differences between HAML and JSON include syntax, purpose, compatibility, data representation, readability, and usage in web development projects. 
Advice on HAML and JSON
Needs advice
on
JSONJSON
and
PythonPython

Hi. Currently, I have a requirement where I have to create a new JSON file based on the input CSV file, validate the generated JSON file, and upload the JSON file into the application (which runs in AWS) using API. Kindly suggest the best language that can meet the above requirement. I feel Python will be better, but I am not sure with the justification of why python. Can you provide your views on this?

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Replies (3)
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PythonPython

Python is very flexible and definitely up the job (although, in reality, any language will be able to cope with this task!). Python has some good libraries built in, and also some third party libraries that will help here. 1. Convert CSV -> JSON 2. Validate against a schema 3. Deploy to AWS

  1. The builtins include json and csv libraries, and, depending on the complexity of the csv file, it is fairly simple to convert:
import csv
import json

with open("your_input.csv", "r") as f:
    csv_as_dict = list(csv.DictReader(f))[0]

with open("your_output.json", "w") as f:
    json.dump(csv_as_dict, f)
  1. The validation part is handled nicely by this library: https://pypi.org/project/jsonschema/ It allows you to create a schema and check whether what you have created works for what you want to do. It is based on the json schema standard, allowing annotation and validation of any json

  2. It as an AWS library to automate the upload - or in fact do pretty much anything with AWS - from within your codebase: https://aws.amazon.com/sdk-for-python/ This will handle authentication to AWS and uploading / deploying the file to wherever it needs to go.

A lot depends on the last two pieces, but the converting itself is really pretty neat.

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GolangGolang

I would use Go. Since CSV files are flat (no hierarchy), you could use the encoding/csv package to read each row, and write out the values as JSON. See https://medium.com/@ankurraina/reading-a-simple-csv-in-go-36d7a269cecd. You just have to figure out in advance what the key is for each row.

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Max Musing
Founder & CEO at BaseDash · | 1 upvotes · 311.3K views
Recommends
on
Node.jsNode.js
at

This should be pretty doable in any language. Go with whatever you're most familiar with.

That being said, there's a case to be made for using Node.js since it's trivial to convert an object to JSON and vice versa.

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Pros of HAML
Pros of JSON
  • 68
    Clean and simple
  • 49
    No html open/close tags
  • 39
    Easier to write than ERB
  • 36
    Forces clean and readable code
  • 34
    Simpler markup language
  • 24
    Open Source
  • 16
    HTML Templating
  • 1
    You'll love it if you like Haikus
  • 5
    Simple
  • 4
    Widely supported

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Cons of HAML
Cons of JSON
  • 3
    It's not Pug
    Be the first to leave a con

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    - No public GitHub repository available -

    What is HAML?

    Haml is a markup language that’s used to cleanly and simply describe the HTML of any web document, without the use of inline code. Haml functions as a replacement for inline page templating systems such as PHP, ERB, and ASP. However, Haml avoids the need for explicitly coding HTML into the template, because it is actually an abstract description of the HTML, with some code to generate dynamic content.

    What is JSON?

    JavaScript Object Notation is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language.

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    What companies use HAML?
    What companies use JSON?
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    What tools integrate with HAML?
    What tools integrate with JSON?

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    Blog Posts

    Aug 28 2019 at 3:10AM

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    What are some alternatives to HAML and JSON?
    Slim
    Slim is easy to use for both beginners and professionals. Slim favors cleanliness over terseness and common cases over edge cases. Its interface is simple, intuitive, and extensively documented — both online and in the code itself.
    Pug
    This project was formerly known as "Jade." Pug is a high performance template engine heavily influenced by Haml and implemented with JavaScript for Node.js and browsers.
    YAML
    A human-readable data-serialization language. It is commonly used for configuration files, but could be used in many applications where data is being stored or transmitted.
    JavaScript
    JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
    Python
    Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
    See all alternatives