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Why Isn't My Calculator's Clear Button Working?

Patricia Arquette
Release: 2024-12-11 17:18:15
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Why Isn't My Calculator's Clear Button Working?

Why onClick Event Is Not Working for the Clear Function?

In an attempt to create a simple calculator, you've encountered an issue where the clear button's onClick attribute fails to clear the text field. Despite the code, the error persists. Let's explore this problem.

The onClick attribute assigns an inline event handler, which is deprecated due to its implementation using the with statement. Internally, it executes as document.clear() instead of the intended clear() function.

Solution:

  1. Rename Clear Function: Change the function name to avoid conflicts with the document object.
  2. Explicitly Call Window.Clear(): Prefix the clear function with window. like so: onClick="window.clear()".

However, for better code practices, it's recommended to bind event handlers using addEventListener instead of inline attributes:

document.getElementById("clearButton").addEventListener("click", () => { clear(); });
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