[Solved] Which task definition correctly reads a JSON file and returns the parsed object in cypress.config.js? | Cypress

Cypress - Plugins and Ecosystem

Which task definition correctly reads a JSON file and returns the parsed object in cypress.config.js?

A

<pre>tasks: {
  readJson({filePath}) {
    const fs = require('fs')
    const data = fs.readFileSync(filePath, 'utf8')
    return JSON.parse(data)
  }
}</pre>

B

<pre>tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return fs.readFileSync(filePath)
  }
}</pre>

C

<pre>tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return JSON.parse(fs.readFileSync(filePath, 'utf8'))
  }
}</pre>

D

<pre>tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return JSON.parse(fs.readFileSync(filePath))
  }
}</pre>

Step-by-Step Solution

Solution:

Step 1: Understand file reading and JSON parsing
To parse JSON, the file content must be read as a UTF-8 string before parsing.

Step 2: Analyze options

tasks: {
  readJson({filePath}) {
    const fs = require('fs')
    const data = fs.readFileSync(filePath, 'utf8')
    return JSON.parse(data)
  }
}

uses an object argument and parses correctly but is valid style-wise; however, the question asks for the correct definition, and

tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return JSON.parse(fs.readFileSync(filePath, 'utf8'))
  }
}

is more standard with a single argument.

tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return fs.readFileSync(filePath)
  }
}

returns raw buffer without parsing.

tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return JSON.parse(fs.readFileSync(filePath))
  }
}

misses the encoding argument, so readFileSync returns a buffer, causing JSON.parse to fail.

tasks: {
  readJson(filePath) {
    const fs = require('fs')
    return JSON.parse(fs.readFileSync(filePath, 'utf8'))
  }
}

correctly reads the file as UTF-8 string and parses it.

Final Answer:

tasks: { readJson(filePath) { const fs = require('fs') return JSON.parse(fs.readFileSync(filePath, 'utf8')) } }
is the correct task definition.

Quick Check:
Always specify 'utf8' when reading JSON files [OK]

Quick Trick: Use 'utf8' encoding before JSON.parse [OK]

Common Mistakes:

Omitting 'utf8' encoding causing buffer parse errors
Returning raw file content without parsing
Incorrect argument destructuring in task

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More Cypress Quizzes

Which task definition correctly reads a JSON file and returns the parsed object in cypress.config.js?

Step 1: Understand file reading and JSON parsing

Step 2: Analyze options

Final Answer:

Quick Check:

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