Change:
```js const player = new Player(); <del> assert.match(player.update.toString(), /ifs*(s*(?:this.position.ys*+s*this.heights*+s*this.velocity.y|this.position.ys*+s*this.velocity.ys*+s*this.height|this.heights*+s*this.position.ys*+s*this.velocity.y|this.heights*+s*this.velocity.ys*+s*this.position.y|this.velocity.ys*+s*this.position.ys*+s*this.height|this.velocity.ys*+s*this.heights*+s*this.position.y)s*<=s*canvas.heights*)s*{s*}/); </del> <ins> assert.match(player.update.toString(), /ifs*(s*(?:this.position.ys*+s*this.heights*+s*this.velocity.y|this.position.ys*+s*this.velocity.ys*+s*this.height|this.heights*+s*this.position.ys*+s*this.velocity.y|this.heights*+s*this.velocity.ys*+s*this.position.y|this.velocity.ys*+s*this.position.ys*+s*this.height|this.velocity.ys*+s*this.heights*+s*this.position.y)s*<=s*canvas.heights*)/); ``` Your `if` statement should be empty. ```js const player = new Player(); assert.match(player.update.toString(), /ifs*(.*)s*{s*}/); </ins> ``` # --seed--

Discussion:
There is a bug in the coding challenge JavaScript Algorithms and Data Structures (Beta) in the topic of "Learn Intermediate OOP by Building a Platformer Game," specifically in lesson 25. The requirement states: "Right now, when the player jumps up, it is possible for it to move past the height of the canvas. To fix that, you will need to add a condition to stop the player from falling past the height of the canvas. Create an empty if statement that checks if the sum of the player's y position, height, and y velocity is less than or equal to the height of the canvas." However, when I wrote the code based on this requirement—by adding an if statement and passing the conditions—it shows the code doesn't work. Despite numerous attempts, I applied the correct logic, but it shows various errors such as, "Your condition for the if statement should check if the sum of the player's y position, height, and y velocity is less than or equal to the height of the canvas," and, "You should update your if() statement." The requirement says to keep the statement empty, which contradicts the errors shown. This issue needs to be addressed to ensure the challenge works as intended. According to the requirement in lesson 25 of the JavaScript Algorithms and Data Structures (Beta) course under "Learn Intermediate OOP by Building a Platformer Game," I expected the following behavior: The task was to ensure that when the player jumps up, they do not move past the height of the canvas. The requirement instructed to create an empty if statement that checks if the sum of the player's y position, height, and y velocity is less than or equal to the height of the canvas. Despite fulfilling this requirement by writing an if statement with the correct condition, the system consistently returned an error message stating, "Your condition for the if statement should check if the sum of the player's y position, height, and y velocity is less than or equal to the height of the canvas." I followed the requirement precisely, expecting the code to execute without error after adding the if statement with the specified condition. However, the error message persisted, indicating a discrepancy between the expected behavior and the actual outcome. !

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Test is expecting literally to not be anything between . It could be changed to remove comments from the code first, or another test could be with appropriate message.
It isn't empty if you add a comment. Empty means nothing. Anyway, I'm fine with removing comments. But there is something to be said for learning to follow instructions precisely. The assert message is bad because it is just a big regex. We could also check the statement body and assert the statement should be empty if we find anything inside it.
Hi and To address the issue with the empty if statement, I've created a function to verify that the if statement's body is entirely empty. Here’s an example: Player Code: update() { (); this.position.x += this.velocity.x; this.position.y += this.velocity.y; if (this.position.y + + this.velocity.y <= ) { // Empty if statement as per your requirement } } Testing Code: function checkIfStatement(playerCode) { const ifStatementRegex = /ifs([sS]?)s{([sS]?)}/; const match = (ifStatementRegex); if (match) { const ifBody = match[1].trim(); return ifBody === ''; // Check if the body is empty } return false; // No matching if statement found } // Example usage const playerCode = update() { (); this.position.x += this.velocity.x; this.position.y += this.velocity.y; if (this.position.y + + this.velocity.y &lt;= ) { // Empty if statement as per your requirement } }; (checkIfStatement(playerCode)); // Should print false because of the comment By ensuring the if statement is entirely empty, we can avoid confusion and meet the requirement precisely. Would this solution be acceptable? I'd be happy to implement it and submit a pull request. Thank you!
Hi yeah it is acceptable and implement the pull request. Thanks for that.
Hi Thank you for the approval! I’m glad to hear that the implementation is acceptable. I’ll keep an eye on the pull request status and address any further issues if they come up. Please let me know if there’s anything else needed from my side. Thanks again for your guidance!