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25/04/2026 02:48am
5 Prompt Templates Every Developer Should Save
#Prompt Templates
#AI coding tools
#developer tools
#Developer
#coding tips
AI has become an essential partner for developers. Knowing how to use AI effectively isn't just a supplementary skill anymore it's a necessity. But the problems many people encounter are:
- Spending too much time writing prompts to get good results
- Getting answers that don't match their needs
- Having to go back and forth multiple rounds before getting usable code
- Not knowing what to ask to get the best answers
- Wasting time thinking up new prompts every time for similar tasks
Impact: Not having good prompt templates means many developers only use 30% of AI's true potential, losing time to trial and error and getting incomplete results.
Wouldn't it be better to use ready made templates designed specifically for developers that give good results every time, without having to think anew or trial and error just use them directly?
5 Prompt Templates
Template 1: Code Review and Bug Fixing
When to use:
- Need AI to help review code
- Have bugs that can't be fixed
- Want advice on code improvement
Template:
Help me review this code:
Language: [JavaScript/Python/etc.]
Function: [Explain what this code does]
Problem: [Specify the problem, or leave blank for general review]
[Code to be reviewed]
Please tell me:
1. What bugs exist
2. Is the code quality good (readable, fast)
3. Are there any security vulnerabilities
4. Improvement recommendations
5. Provide a better version of the code
Example:
Help me review this code:
Language: JavaScript
Function: Login function for web
Problem: Sometimes login fails, don't know why
function login(username, password) {
if (username && password) {
fetch('/api/login', {
method: 'POST',
body: JSON.stringify({username, password})
}).then(response => response.json())
.then(data => {
if (data.success) {
localStorage.setItem('token', data.token);
window.location.href = '/dashboard';
}
});
}
}
Please tell me:
1. What bugs exist
2. Is the code quality good (readable, fast)
3. Are there any security vulnerabilities
4. Improvement recommendations
5. Provide a better version of the code
Template 2: Learning New Technology
When to use:
- Need to learn new technology
- Don't understand difficult concepts
- Want real world usage examples
Template:
Please teach me about [topic]
My level: [Beginner/Intermediate/Advanced]
Will use for: [Tell what you'll use it for]
Please explain:
1. What it is (use simple words)
2. Compare to real-life things
3. Give usable code examples (with explanatory comments)
4. Common mistakes beginners make
5. What to learn next
6. Give practice exercises
Explain step by step, starting simple then getting harder
Template 3: Quick Feature Creation
When to use:
- Need to create new features quickly
- Want ready to use code
- Limited time
Template:
Help me create [feature/function]
Goal: [Say what you want]
Technology: [React, Node.js, etc.]
Constraints: [Time, performance, browser support]
Requirements:
- [Requirement 1]
- [Requirement 2]
- [Requirement 3]
Please provide:
1. Ready-to-use code
2. Installation/setup instructions
3. Usage examples
4. How to handle special cases
5. Basic test code
Focus on simple and stable rather than complex
Tips included:
- Include lots of details for accurate answers
- Include error messages if you have them
- Specify environment (Node.js version, browser support)
- Don't be shy about saying you're a beginner
- Ask for comparisons to understand better
- Request examples relevant to real work
- Clearly state constraints to get truly usable code
- Ask for error handling too
- Request usage examples to know how to integrate
Template 4: Writing Tests
When to use:
- Don't know what to test
- Need comprehensive test coverage
- Need to mock dependencies
Template:
Help me write tests for this code:
Framework: [Jest/Mocha/Cypress]
Type: [Component/Function/API]
Goal: [Unit/Integration/E2E tests]
[Code to be tested]
Please provide:
1. Test plan (what should be tested)
2. Complete list of test cases
3. Working test code
4. How to mock dependencies
5. Testing edge cases and errors
6. Performance tests (if necessary)
Need both positive and negative cases
Example:
Help me write tests for this code:
Framework: Jest + React Testing Library
Type: React Component
Goal: Unit tests + some integration
function UserSearch({ onUserSelect }) {
const [query, setQuery] = useState('');
const [users, setUsers] = useState([]);
const [loading, setLoading] = useState(false);
const searchUsers = async (searchQuery) => {
setLoading(true);
try {
const response = await fetch(`/api/users?q=${searchQuery}`);
const data = await response.json();
setUsers(data.users || []);
} catch (error) {
setUsers([]);
} finally {
setLoading(false);
}
};
return (
<div>
<input
value={query}
onChange={(e) => setQuery(e.target.value)}
onKeyPress={(e) => e.key === 'Enter' && searchUsers(query)}
/>
{loading && <div>Loading...</div>}
{users.map(user => (
<div key={user.id} onClick={() => onUserSelect(user)}>
{user.name}
</div>
))}
</div>
);
}
Please provide:
1. Test plan (what should be tested)
2. Complete list of test cases
3. Working test code
4. How to mock dependencies
5. Testing edge cases and errors
6. Performance tests (if necessary)
Need both positive and negative cases
Template 5: Code Improvement
When to use:
- Code runs slowly
- Code is hard to read or maintain
- Lots of duplicate code
Template:
Help me improve this code to make it [faster/more readable/easier to maintain]
Current problems: [Describe issues you're experiencing]
Requirements: [e.g., load in under 2 seconds]
Constraints: [e.g., must be compatible with existing code]
Priority order: [Speed/Readability/Maintainability]
Original code:
[Paste code here]
Please tell me:
1. What are the problems and where are the bottlenecks
2. Improved code with explanations
3. How much better will it be
4. What might break in the original code
5. How to change safely
6. Other approaches possible
Focus on high-impact, low-risk improvements
Example:
Help me improve this code to make it faster and more readable
Current problems: Page loads slowly, code is hard to read, lots of duplicate logic
Requirements: Load in under 2 seconds on 3G
Constraints: Existing API must still work
Priority order: Speed > Readability > Maintainability
Original code:
function ProductList() {
const [products, setProducts] = useState([]);
const [categories, setCategories] = useState([]);
const [selectedCategory, setSelectedCategory] = useState('all');
useEffect(() => {
fetch('/api/products')
.then(res => res.json())
.then(data => setProducts(data));
fetch('/api/categories')
.then(res => res.json())
.then(data => setCategories(data));
}, []);
const filteredProducts = products.filter(product => {
if (selectedCategory === 'all') return true;
return product.category === selectedCategory;
});
return (
<div>
<select onChange={(e) => setSelectedCategory(e.target.value)}>
<option value="all">All Categories</option>
{categories.map(cat => (
<option key={cat.id} value={cat.name}>{cat.name}</option>
))}
</select>
{filteredProducts.map(product => (
<div key={product.id}>
<img src={product.image} alt={product.name} />
<h3>{product.name}</h3>
<p>${product.price}</p>
</div>
))}
</div>
);
}
Please tell me:
1. What are the problems and where are the bottlenecks
2. Improved code with explanations
3. How much better will it be
4. What might break in the original code
5. How to change safely
6. Other approaches possible
Focus on high-impact, low-risk improvements
Techniques for Using Templates Effectively
1. Customize for Your Project
Keep project information and include in templates:
Project uses: React 18 + TypeScript + Material-UI v5
Target: Modern browsers
Team: 5 people
Coding Style: Airbnb ESLint
2. Follow Up After Getting Answers
- "Explain line X in more detail"
- "What are the downsides of this approach?"
- "Will this work if the data gets much larger?"
- "Are there other ways to do this?"
3. Save Good Versions
When you modify a template and get good results, save it with notes:
- Which project it was used for
- Date used
- What the results were like
4. Break Large Tasks into Multiple Prompts
Large tasks should be divided into:
- Problem analysis
- Solution design
- Writing code
- Writing tests
- Performance optimization
Tips for each template:
- Template 4: Specify framework clearly for correct syntax, ask for test plan to know what to test, ask for mocking methods because you'll definitely need them
- Template 5: Describe problems clearly for targeted advice, set priority order for appropriate solutions, ask for safe change methods
Ways to Store Templates
Option 1: Text Snippets
- VS Code: Use User Snippets
- Notion: Create Template pages
- Note apps: Store in note taking apps
Option 2: Browser Shortcuts
Create bookmarks that open templates in a textarea:
javascript:(function(){
var template = "Help me review this code...";
var newWindow = window.open('', '', 'width=800,height=600');
newWindow.document.write('<textarea style="width:100%;height:100%">' + template + '</textarea>');
})();
Option 3: CLI Tool
Create command line tools for opening templates
Summary
These 5 Templates cover the main tasks of developers:
- Code Review and Bug Fixing - Solve code problems
- Learning New Technology - Learn new technologies
- Quick Feature Creation - Implement features rapidly
- Writing Tests - Handle testing
- Code Improvement - Refactor and optimize
Key Points to Remember:
- Include lots of details for better answers
- Customize for your own project
- Save versions that work well
- Ask follow up questions when you need clarity
Templates are just the starting point. Customizing them for real work will give you the best results!
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