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📝 WalkthroughWalkthroughA comprehensive HTML-based single-page application for placement prediction is introduced. The page features a multi-section form flow (Welcome, Basic Information, Role Selection, Skill Assessment, Results) with embedded data structures for job requirements, weekly learning strategies, AI tips, and company preparation plans. The application performs eligibility calculations and renders dynamic results with company details and improvement recommendations. Changes
Estimated Code Review Effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
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✅ Passed checks (3 passed)
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Actionable comments posted: 5
🤖 Fix all issues with AI agents
In `@index.html`:
- Around line 1118-1126: The inline onclick attributes on the company cards
break when company names contain quotes (e.g., "Byju's") and risk XSS; instead,
remove the onclick from the template construction (the company-card divs created
from roleData.companies.big and roleData.companies.startup) and add data
attributes data-job, data-company and data-type on each .company-card (using
roles[0], company and 'big'/'startup'); then attach a delegated click listener
on the parent container (e.g., element with id companiesDetailContent) that
finds the closest .company-card and calls openJobModal(card.dataset.job,
card.dataset.company, card.dataset.type).
- Line 766: The week 2 entry has a typo in the title property ("Automati");
update the object where week: 2 (the entry with title and tasks array) to set
title: "Automation" so the QA Engineer week 2 title is not truncated.
- Around line 902-921: selectRole currently relies on the implicit global event
and doesn't check the radio; update the call site where onclick is set to pass
the event (e.g., onclick="selectRole(event,'${role}')"), change the selectRole
signature to accept (event, role), set userData.selectedRole = role, clear
styles on all '.role-option' as before using event.currentTarget to style the
clicked element, and programmatically check the radio input inside the clicked
'.role-option' (e.g., find the input[type="radio"] within event.currentTarget
and set its checked = true) so the UI reflects the selection.
- Around line 1158-1169: The downloadReport function creates a Blob URL each
call but never revokes it, leaking memory; update downloadReport to call
window.URL.revokeObjectURL(url) after triggering the download (e.g., call
revokeObjectURL(url) inside a short setTimeout or after the anchor click) while
still appending/removing the anchor element as done now; reference the
downloadReport function and the local url variable when adding the revoke so the
blob URL is released after the download is initiated.
- Around line 294-310: The pseudo-element .step-indicator::before uses z-index:
-1 which places the line behind the .container stacking context and hides it;
remove the negative z-index and instead give the connector a non-negative
stacking position and lift the step circles above it by setting
.step-indicator::before to z-index: 0 (or simply removing z-index) and ensuring
the step number elements (e.g. .step, .step-number or .step-indicator .step)
have a higher z-index (e.g. z-index: 1) and position: relative so the connecting
line remains visible while step numbers sit above it.
🧹 Nitpick comments (3)
index.html (3)
896-911:innerHTML +=in a loop re-parses the entire content on each iteration.Building the HTML string first and assigning
innerHTMLonce would be cleaner and avoids redundant DOM re-parsing. The same pattern appears ininitializeSkills(lines 930-948).Proposed fix for initializeJobRoles
function initializeJobRoles() { const rolesList = document.getElementById('rolesList'); - rolesList.innerHTML = ''; - Object.keys(jobRequirements).forEach(role => { + let html = ''; + Object.keys(jobRequirements).forEach(role => { const data = jobRequirements[role]; - rolesList.innerHTML += ` + html += ` <div class="role-option" onclick="selectRole('${role}', event)"> <input type="radio" name="jobRole" value="${role}"> <div class="role-info"> <strong>${role}</strong> <small>${data.description}</small> </div> </div> `; }); + rolesList.innerHTML = html; }
606-614: Modal lacks keyboard accessibility — no Escape key handler or focus trap.The modal can only be closed by clicking the
×button or the backdrop. Users navigating with a keyboard cannot dismiss it with Escape, and focus is not trapped inside the modal. Additionally, the close button (line 610) should have anaria-label.Proposed fix — add Escape key handling and aria-label
Add
aria-labelto the close button:- <button class="modal-close" onclick="closeJobModal()">×</button> + <button class="modal-close" onclick="closeJobModal()" aria-label="Close">×</button>Add an Escape key listener inside the
DOMContentLoadedhandler:document.addEventListener('keydown', function(e) { if (e.key === 'Escape') closeJobModal(); });
616-878: Large inline data structures work for a self-contained prototype but will be hard to maintain.All role requirements, weekly strategies, tips, and preparation plans are embedded directly in the HTML file (~260 lines of JSON-like data). For a hackathon project this is fine, but if this grows, consider extracting to separate JSON files loaded at runtime or build time.
| .step-indicator { | ||
| display: flex; | ||
| justify-content: space-between; | ||
| margin-bottom: 30px; | ||
| position: relative; | ||
| } | ||
|
|
||
| .step-indicator::before { | ||
| content: ""; | ||
| position: absolute; | ||
| top: 20px; | ||
| left: 0; | ||
| right: 0; | ||
| height: 2px; | ||
| background: #e0e0e0; | ||
| z-index: -1; | ||
| } |
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z-index: -1 on .step-indicator::before will hide the connecting line behind .container's white background.
The .container element creates a stacking context due to its animation property (line 31). Within that stacking context, the z-index: -1 pseudo-element is rendered behind the container's background, making the step-indicator connecting line invisible.
Proposed fix — use a positive z-index approach
Remove the negative z-index from the pseudo-element and instead elevate the step numbers above it:
.step-indicator::before {
content: "";
position: absolute;
top: 20px;
left: 0;
right: 0;
height: 2px;
background: `#e0e0e0`;
- z-index: -1;
+ z-index: 0;
}
+ .step { position: relative; z-index: 1; }🤖 Prompt for AI Agents
In `@index.html` around lines 294 - 310, The pseudo-element
.step-indicator::before uses z-index: -1 which places the line behind the
.container stacking context and hides it; remove the negative z-index and
instead give the connector a non-negative stacking position and lift the step
circles above it by setting .step-indicator::before to z-index: 0 (or simply
removing z-index) and ensuring the step number elements (e.g. .step,
.step-number or .step-indicator .step) have a higher z-index (e.g. z-index: 1)
and position: relative so the connecting line remains visible while step numbers
sit above it.
| ], | ||
| "QA Engineer": [ | ||
| { week: 1, title: "Testing Fundamentals", tasks: ["Learn test types", "Master test design", "Practice manual"] }, | ||
| { week: 2, title: "Automati", tasks: ["Learn Selenium", "Master frameworks", "Build test suites"] }, |
There was a problem hiding this comment.
Typo: "Automati" should be "Automation".
The week 2 title for QA Engineer is truncated.
- { week: 2, title: "Automati", tasks: ["Learn Selenium", "Master frameworks", "Build test suites"] },
+ { week: 2, title: "Automation", tasks: ["Learn Selenium", "Master frameworks", "Build test suites"] },📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| { week: 2, title: "Automati", tasks: ["Learn Selenium", "Master frameworks", "Build test suites"] }, | |
| { week: 2, title: "Automation", tasks: ["Learn Selenium", "Master frameworks", "Build test suites"] }, |
🤖 Prompt for AI Agents
In `@index.html` at line 766, The week 2 entry has a typo in the title property
("Automati"); update the object where week: 2 (the entry with title and tasks
array) to set title: "Automation" so the QA Engineer week 2 title is not
truncated.
| <div class="role-option" onclick="selectRole('${role}')"> | ||
| <input type="radio" name="jobRole" value="${role}"> | ||
| <div class="role-info"> | ||
| <strong>${role}</strong> | ||
| <small>${data.description}</small> | ||
| </div> | ||
| </div> | ||
| `; | ||
| }); | ||
| } | ||
|
|
||
| function selectRole(role) { | ||
| userData.selectedRole = role; | ||
| document.querySelectorAll('.role-option').forEach(opt => { | ||
| opt.style.borderColor = '#e0e0e0'; | ||
| opt.style.background = '#f8f9fa'; | ||
| }); | ||
| event.currentTarget.style.borderColor = '#667eea'; | ||
| event.currentTarget.style.background = '#f0f2ff'; | ||
| } |
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selectRole relies on the implicit global event object — pass it explicitly instead.
Line 919 references event.currentTarget, but event is never passed as a parameter to selectRole. It depends on the legacy window.event implicit global, which is non-standard (though supported by most modern browsers). Additionally, the radio button inside each .role-option is never programmatically checked, so it stays visually unchecked even after selection.
Proposed fix
In initializeJobRoles (line 902), pass event:
- <div class="role-option" onclick="selectRole('${role}')">
+ <div class="role-option" onclick="selectRole('${role}', event)">In selectRole (line 913), accept and use event explicitly, and check the radio:
- function selectRole(role) {
+ function selectRole(role, event) {
userData.selectedRole = role;
document.querySelectorAll('.role-option').forEach(opt => {
opt.style.borderColor = '#e0e0e0';
opt.style.background = '#f8f9fa';
+ opt.querySelector('input[type="radio"]').checked = false;
});
event.currentTarget.style.borderColor = '#667eea';
event.currentTarget.style.background = '#f0f2ff';
+ event.currentTarget.querySelector('input[type="radio"]').checked = true;
}🤖 Prompt for AI Agents
In `@index.html` around lines 902 - 921, selectRole currently relies on the
implicit global event and doesn't check the radio; update the call site where
onclick is set to pass the event (e.g., onclick="selectRole(event,'${role}')"),
change the selectRole signature to accept (event, role), set
userData.selectedRole = role, clear styles on all '.role-option' as before using
event.currentTarget to style the clicked element, and programmatically check the
radio input inside the clicked '.role-option' (e.g., find the
input[type="radio"] within event.currentTarget and set its checked = true) so
the UI reflects the selection.
| let html = '<div class="company-category-title">🏢 Big Companies</div><div class="company-grid">'; | ||
| Object.entries(roleData.companies.big).forEach(([company, roles]) => { | ||
| html += `<div class="company-card" onclick="openJobModal('${roles[0]}', '${company}', 'big')"><span class="company-badge">Big</span><h3>${company}</h3><div class="company-type">Established</div><ul>${roles.map(r => `<li>${r}</li>`).join('')}</ul></div>`; | ||
| }); | ||
| html += '</div><div class="company-category-title">🚀 Startups</div><div class="company-grid">'; | ||
| Object.entries(roleData.companies.startup).forEach(([company, roles]) => { | ||
| html += `<div class="company-card" onclick="openJobModal('${roles[0]}', '${company}', 'startup')"><span class="company-badge startup">Startup</span><h3>${company}</h3><div class="company-type">Growth</div><ul>${roles.map(r => `<li>${r}</li>`).join('')}</ul></div>`; | ||
| }); | ||
| html += '</div>'; |
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Unescaped quotes in onclick attribute will cause a runtime error (and potential XSS with dynamic data).
Company names like "Byju's" (line 626) contain a single quote. When interpolated into the onclick attribute on lines 1120/1124, this produces broken HTML:
onclick="openJobModal('Web Developer', 'Byju's', 'startup')"This results in a JavaScript syntax error when clicking the Byju's card, and in a more general sense, this pattern is vulnerable to injection if data ever comes from external sources.
Proposed fix — use data attributes and delegated event handling
Replace the inline onclick with data attributes and a listener:
Object.entries(roleData.companies.big).forEach(([company, roles]) => {
- html += `<div class="company-card" onclick="openJobModal('${roles[0]}', '${company}', 'big')"><span class="company-badge">Big</span><h3>${company}</h3><div class="company-type">Established</div><ul>${roles.map(r => `<li>${r}</li>`).join('')}</ul></div>`;
+ html += `<div class="company-card" data-job="${roles[0].replace(/"/g, '"')}" data-company="${company.replace(/"/g, '"')}" data-type="big"><span class="company-badge">Big</span><h3>${company}</h3><div class="company-type">Established</div><ul>${roles.map(r => `<li>${r}</li>`).join('')}</ul></div>`;
});Then add a delegated click handler:
document.getElementById('companiesDetailContent').addEventListener('click', function(e) {
const card = e.target.closest('.company-card');
if (card) {
openJobModal(card.dataset.job, card.dataset.company, card.dataset.type);
}
});🤖 Prompt for AI Agents
In `@index.html` around lines 1118 - 1126, The inline onclick attributes on the
company cards break when company names contain quotes (e.g., "Byju's") and risk
XSS; instead, remove the onclick from the template construction (the
company-card divs created from roleData.companies.big and
roleData.companies.startup) and add data attributes data-job, data-company and
data-type on each .company-card (using roles[0], company and 'big'/'startup');
then attach a delegated click listener on the parent container (e.g., element
with id companiesDetailContent) that finds the closest .company-card and calls
openJobModal(card.dataset.job, card.dataset.company, card.dataset.type).
| function downloadReport() { | ||
| const balance = calculatePredictionBalance(); | ||
| const content = `PLACEMENT PREDICTION REPORT\n\nName: ${userData.name}\nCGPA: ${userData.cgpa}\nRole: ${userData.selectedRole}\n\nBalance Score: ${balance.totalBalance}% (${balance.ratingCategory})\nEligible: ${userData.eligibility.eligible ? 'YES' : 'NO'}`; | ||
| const blob = new Blob([content], { type: 'text/plain' }); | ||
| const url = window.URL.createObjectURL(blob); | ||
| const a = document.createElement('a'); | ||
| a.href = url; | ||
| a.download = `report_${userData.name}.txt`; | ||
| document.body.appendChild(a); | ||
| a.click(); | ||
| document.body.removeChild(a); | ||
| } |
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Missing URL.revokeObjectURL — blob URL leaks memory on each download.
Each call to downloadReport creates a new object URL that is never revoked. If the user clicks the download button multiple times, these accumulate.
Proposed fix
function downloadReport() {
const balance = calculatePredictionBalance();
const content = `PLACEMENT PREDICTION REPORT\n\nName: ${userData.name}\nCGPA: ${userData.cgpa}\nRole: ${userData.selectedRole}\n\nBalance Score: ${balance.totalBalance}% (${balance.ratingCategory})\nEligible: ${userData.eligibility.eligible ? 'YES' : 'NO'}`;
const blob = new Blob([content], { type: 'text/plain' });
const url = window.URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = `report_${userData.name}.txt`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
+ window.URL.revokeObjectURL(url);
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| function downloadReport() { | |
| const balance = calculatePredictionBalance(); | |
| const content = `PLACEMENT PREDICTION REPORT\n\nName: ${userData.name}\nCGPA: ${userData.cgpa}\nRole: ${userData.selectedRole}\n\nBalance Score: ${balance.totalBalance}% (${balance.ratingCategory})\nEligible: ${userData.eligibility.eligible ? 'YES' : 'NO'}`; | |
| const blob = new Blob([content], { type: 'text/plain' }); | |
| const url = window.URL.createObjectURL(blob); | |
| const a = document.createElement('a'); | |
| a.href = url; | |
| a.download = `report_${userData.name}.txt`; | |
| document.body.appendChild(a); | |
| a.click(); | |
| document.body.removeChild(a); | |
| } | |
| function downloadReport() { | |
| const balance = calculatePredictionBalance(); | |
| const content = `PLACEMENT PREDICTION REPORT\n\nName: ${userData.name}\nCGPA: ${userData.cgpa}\nRole: ${userData.selectedRole}\n\nBalance Score: ${balance.totalBalance}% (${balance.ratingCategory})\nEligible: ${userData.eligibility.eligible ? 'YES' : 'NO'}`; | |
| const blob = new Blob([content], { type: 'text/plain' }); | |
| const url = window.URL.createObjectURL(blob); | |
| const a = document.createElement('a'); | |
| a.href = url; | |
| a.download = `report_${userData.name}.txt`; | |
| document.body.appendChild(a); | |
| a.click(); | |
| document.body.removeChild(a); | |
| window.URL.revokeObjectURL(url); | |
| } |
🤖 Prompt for AI Agents
In `@index.html` around lines 1158 - 1169, The downloadReport function creates a
Blob URL each call but never revokes it, leaking memory; update downloadReport
to call window.URL.revokeObjectURL(url) after triggering the download (e.g.,
call revokeObjectURL(url) inside a short setTimeout or after the anchor click)
while still appending/removing the anchor element as done now; reference the
downloadReport function and the local url variable when adding the revoke so the
blob URL is released after the download is initiated.
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