How to display output data in tabular form in Node.js?

In this article, we will discuss how to display output data in tabular form in Node.js with its syntax, and examples.

In programming and data presentation, tables are a fundamental structure that combines rows and columns to methodically arrange and indicate data. The process of constructing tables in terminal or command-line apps is made easier by the table module in Node.js. Strong capabilities for creating aesthetically pleasing tables with improved readability and customization are provided by this module to developers.

It's perfect for attractively presenting tabular data because it supports a wide range of styles, including border styles, body alignment, colors, and text formatting. Developers can format data cells, establish headers, and even apply themes or unique configurations to suit their own design preferences with this module. Users can improve the overall quality and usability of their terminal-based applications by using the Node.js table module to create dynamic and attractively arranged tables for logs, reports, or debugging outputs.

Syntax:

It has the following syntax.

Parameters:

• data: An array of arrays, each representing a table row, is passed to this parameter. Individual cells of that row are represented by the elements in each hierarchical array.
• config: This parameter accepts to configure the table by passing in an object with predefined configurations. In order to manage the table's appearance, it provides options for border styles, column alignment, padding, and other functional or decorative settings.

Return Value:

The formatted table is returned as a string by the table function. This string contains every row and column that is styled according to the given configuration and is prepared for display in the console or terminal.

Example Usage:

Example 1:

Let us take an example to display output data in tabular form in Node.js.

Output:

 +-------+-------+-------+ | Item | Price | Stock | +-------+-------+-------+ | Apple | $1 | 50 | | Banana| $0.5| 30 | | Orange| $0.8| 100 | | Mango | $1.2| 20 | +-------+-------+-------+ 

Explanation:

This code creates and displays a formatted table in the console by using the table module. According to its definition, tableData is a multi-dimensional array that holds details about products, prices, and stock quantities. In order to modify the table's appearance, utilize the tableConfig object. It includes adjusting the table's border styles, centering the columns, and adding padding to make the table easier to read. The formatted table string is created using the table.table() function and then console.log() is used to print it to the console.

Example 2:

Let us take an example to display output data in tabular form in Node.js.

Output:

 +-----+---------------------+------+ | ID | Full Name | Age | +-----+---------------------+------+ | 1 | John Doe | 28 | | 2 | Jane Smith | 34 | | 3 | Michael Brown | 22 | | 4 | Emily White | 25 | +-----+---------------------+------+ 

Explanation:

The Node.js table module is used in the code to create a formatted table. The ID, Full Name, and Age columns in the table, each with many rows, contain the data that will be shown in the dataRows variable. Each column's width is specified by the tableOptions environment, which also applies column alignment and padding and sets the border style to "ramac". Only the header and the final row will have horizontal lines produced due to the drawHorizontalLine method. The final formatted table is created using the table.table() method and logged to the console. The data will appear in a well-formatted table with distinct column widths and borders in the output that is produced.