add solution #1571
add solution #1571
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Great job on implementing the solution! 🎉 The code meets all the task requirements and constraints effectively. Just make sure to verify that the necessary elements exist in the DOM to prevent any potential runtime errors. Keep up the good work! 😊
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| 'use strict'; | |||
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| // write your code here | |||
| const populationElements = document.querySelectorAll('span.population'); | |||
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Ensure that there are elements with the class 'population' in the DOM. If there are none, this will result in an empty NodeList, and subsequent operations will not work as expected.
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| const averagePopulation = totalPopulation / populations.length; | ||
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| const totalPopSpan = document.querySelector('span.total-population'); |
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Ensure that there is an element with the class 'total-population' in the DOM. If this element does not exist, this line will result in a null reference error when trying to set the textContent.
| const averagePopulation = totalPopulation / populations.length; | ||
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| const totalPopSpan = document.querySelector('span.total-population'); | ||
| const averagePopSpan = document.querySelector('span.average-population'); |
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Ensure that there is an element with the class 'average-population' in the DOM. If this element does not exist, this line will result in a null reference error when trying to set the textContent.
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