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My web-based date-booking tool currently needs about 0.3 s to click a newly available date, and that lag is costing me reservations. Every performance trace I run points to the front-end, not the database or server. The moment the calendar grid appears, the “select date” routine bogs down—JavaScript churns through DOM nodes before the click actually fires. Here’s what I need: • Refactor or rewrite the selection routine so it reliably identifies and clicks the first free date in under 0.1 s under real-world load. • Keep the existing UI intact; only the underlying script should change. • Show me comparative metrics (before/after timing or a small Lighthouse/DevTools recording) to confirm the gain. The codebase is plain JavaScript with a sprinkling of jQuery; no frameworks in the critical path. If you prefer vanilla JS, event delegation, or MutationObserver tricks, I’m fine with that as long as the end result is faster and stable across Chrome, Firefox, and Edge. Hand me back the optimised script (or patch), any helper functions you added, and short notes explaining how to maintain or extend the solution.
Projektin tunnus (ID): 40237539
281 ehdotukset
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Aktiivinen 18 päivää sitten
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Rekisteröinti ja töihin tarjoaminen on ilmaista
281 freelancerit tarjoavat keskimäärin £440 GBP tätä projektia

⭕⭕FRONT-END EXPERT⭕⭕ Hi there, ✔️I see you're facing delay in your date-booking tool. I can refactor the selection routine to execute under 0.1s while keeping your existing UI completely intact. Key task includes :- ✦ Refactor date selection logic ✦ Remove heavy DOM traversal ✦ Optimize vanilla JS / jQuery usage ✦ Improve execution speed under real-world load ✦ Provide before/after performance metrics ✍️ Is the available date identified by a specific class or data attribute? ✍️ Does the calendar re-render fully or update dynamically? ♾️ That's all for now. I can commence immediately. I am open to a chat to proceed forward with the next step. Thank You.
£500 GBP 7 päivässä
10,0
10,0

Hello! I can refactor your front-end date-selection routine to eliminate DOM thrashing and bring click execution consistently under 0.1 s without altering the existing UI. Proposed Architecture: Core Engine • Replace broad DOM scans with scoped, cached selectors • Eliminate synchronous layout reflows and unnecessary query cycles • Use event delegation and direct element references instead of repeated traversal • Optional MutationObserver to detect grid render completion efficiently Flow • Profile current routine to isolate blocking calls and reflow triggers • Refactor selection logic to target first available date via indexed lookup • Reduce jQuery dependency in critical path, favoring optimized vanilla JS • Benchmark under simulated real-world load Performance Strategy • Minimize DOM queries using memoization • Batch reads/writes to prevent layout thrashing • Use requestAnimationFrame only if required for safe DOM interaction • Validate across Chrome, Firefox, and Edge Let’s define your benchmark set and preferred hosting environment so we can move quickly. Best regards, Jasmin
£500 GBP 7 päivässä
9,4
9,4

Hello, I can speed up your date-booking click by rewriting the selection routine to find and click the first free date in under 0.1s under real load, while keeping the current UI intact. My plan is to minimize DOM churn, replace or optimize the existing selector with a direct, minimal path (vanilla JS or lightweight jQuery as needed), and use a fast, single-pass check to identify an available date. I’ll implement a small, well-tested patch set, plus a lightweight helper if needed, and ensure cross-browser compatibility (Chrome, Firefox, Edge). I’ll run before/after timings and Lighthouse/DevTools traces to show the gain and provide clear notes for maintenance and future tweaks. What is the longest single operation in the current date selection flow, and can you share a recent performance trace showing where it spends most time? Best regards, Muhammad Awais
£750 GBP 15 päivässä
9,2
9,2

⭐⭐⭐⭐⭐ CnELIndia, with expertise in frontend optimization and performance tuning, will help you refactor your date-booking tool for optimal speed. Raman Ladhani will lead the effort in analyzing your current selection routine and pinpointing inefficiencies. We will rewrite the selection script, utilizing event delegation or MutationObserver to streamline DOM manipulations and reduce JavaScript overhead. Our approach will ensure that the first free date is identified and selected in under 0.1s, even under real-world load. After optimizing the script, we will provide you with comparative metrics, including before-and-after performance data using Lighthouse or DevTools, showcasing the reduction in load time. We will ensure the solution is stable across Chrome, Firefox, and Edge. The optimized script, helper functions, and detailed notes for future maintenance will be handed back to you, ensuring ongoing ease of use and extendibility.
£500 GBP 7 päivässä
9,0
9,0

Hello, With my vast experience in frontend development, I understand the immense value of a speedy and efficient date-booking script for your reservation system. As a highlight, our team of seasoned web developers at Our Software holds expertise in JavaScript just the exact tool your project needs to thrive. We have previously optimized other demanding applications for speed and accuracy on time-critical tasks. With this, we strive to refactor or rewrite your selection routine ensuring a reliable click of the first available date under 0.1 seconds. Coming to the crucial aspect of maintaining the UI integrity while enhancing performance, our forte in using vanilla JS with event delegation or MutationObserver tricks aligns perfectly with your needs. You can trust us to present you not only the optimized script but also detailed notes on how to sustain and possibly extend its efficiency going forward. In conclusion, choosing us will grant you access to one of Pakistan's leading internet service companies known for delivering transformative web solutions. No project is too big or small for us; we are driven by channeling our clients' dreams into scalable outcomes. Partner with us and together we'll overcome the challenge of sluggish date booking significantly improving your reservation rate. Let's turn your vision into a "WOW" reality! Thanks!
£450 GBP 3 päivässä
8,6
8,6

I have extensive experience in PHP, JavaScript, HTML5, jQuery, and web development, making me a great match for the "Speed Up Date-Booking Script" project. I am confident in my ability to refactor the selection routine to meet your performance requirements. Once we discuss the full scope, I am open to adjusting the budget to ensure we stay within your constraints. Let's start optimizing your script and improving the user experience. Please review my profile to see my 15 years of experience and commitment to client satisfaction. Looking forward to discussing the details and getting started on this project.
£525 GBP 10 päivässä
8,7
8,7

Hi, I can refactor your selection routine to ensure it identifies and clicks the first available date in under 0.1 seconds while maintaining the existing UI. Using techniques like event delegation and MutationObserver, I can boost performance significantly. After the optimization, I’ll provide comparative metrics and a brief recording to demonstrate the improvements. Additionally, I’ll ensure all optimizations are stable across Chrome, Firefox, and Edge. I have experience in JavaScript and jQuery, and I’m confident I can deliver quality results. Let me know if you’d like to discuss this further! Best Regards, Priyanka
£250 GBP 2 päivässä
8,4
8,4

Hi Famara . I’m your web developer, ready to turn your project Speed Up Date-Booking Script into reality! I’d love to discuss the details and create something amazing together. Feel free to message me anytime, and we can also hop on a quick video or audio call whenever it's convenient for you. I’ve developed many projects exactly like what you’re looking for. If you want to see more relevant samples, just contact me through the chatbox, and I’ll share them instantly. ★ Why Clients Trust Me 500+ successful web projects delivered 430+ positive client reviews Expert in PHP, JavaScript, HTML5, jQuery / Prototype, Web Development, Frontend Development, jQuery, Web Application WordPress, Shopify, PHP, JavaScript, HTML, CSS, Plugin/Theme Development, Laravel, WebApp Clean, modern, responsive and SEO-optimized designs Fast delivery, great communication, and long-term support Available during EST hours for smooth collaboration If you want a professional developer who delivers quality work on time and stress-free, let’s connect. I’m excited to help build something amazing for you. Best regards, Kausar Parveen
£350 GBP 3 päivässä
8,3
8,3

Hi there, I can refactor your current date‑selection routine so it reliably identifies and clicks the first available date in under 0.1 seconds. My approach will cover: - Code optimization: streamline DOM traversal with vanilla JS, event delegation, and efficient selectors to eliminate unnecessary loops. - Performance techniques: leverage MutationObserver or direct node indexing to reduce churn and speed up click execution. - UI preservation: keep the existing calendar grid and interface intact—only the underlying script will change. - Validation: provide comparative metrics (before/after timing) using DevTools or Lighthouse recordings to confirm the performance gain. - Deliverables: optimized script/patch, helper functions if needed, and short notes explaining how to maintain or extend the solution. Thanks and regards, Asif Ali Zaman
£400 GBP 8 päivässä
8,1
8,1

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat so I can share relevant examples of my past work. I look forward to hearing from you. Best Regards, Divu.
£750 GBP 8 päivässä
8,1
8,1

Hi, I understand that every millisecond counts when it comes to your date-booking tool’s performance, and even a slight delay can turn potential bookings away. Your problem strikes at the core of user experience , swift, seamless interactions that keep your customers engaged. Having optimized frontend scripts for speed-sensitive applications many times, I’m confident I can refactor your selection routine to cut the lag from 0.3s to below 0.1s as you require. I will optimize the JavaScript to efficiently navigate the DOM and immediately trigger the date selection using advanced techniques like event delegation or MutationObserver if needed, without altering your current UI. To build trust, I’ll provide thorough before-and-after performance benchmarks using DevTools timelines or Lighthouse reports. I've shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. I can deliver the optimized script, helper functions, and clear maintenance notes within 6 days. Have you identified any particular parts of the DOM structure or event binding that currently cause the biggest delays in the selection routine? Thanks, Asad
£250 GBP 10 päivässä
8,2
8,2

⭐⭐⭐⭐⭐ Speed Up Your Date-Booking Tool with Optimized JavaScript ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a solution to enhance the performance of your date-booking tool. You don't need to look any further; Zohaib is here to help you! My team has completed 50+ similar projects focused on optimizing JavaScript performance. I will refactor or rewrite your selection routine to ensure it clicks the first available date in under 0.1 seconds. My approach includes maintaining your existing UI while improving the underlying script. I will provide comparative metrics to confirm the performance gain, ensuring stability across Chrome, Firefox, and Edge. ➡️ Why Me? I have 5 years of experience in JavaScript optimization, focusing on front-end performance. My expertise includes DOM manipulation, event handling, and performance testing. Additionally, I have a strong grip on jQuery and various optimization techniques, ensuring a robust solution for your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ JavaScript Optimization ✅ DOM Manipulation ✅ Performance Testing ✅ jQuery ✅ Event Handling ✅ Code Refactoring ✅ Cross-Browser Compatibility ✅ Metrics Analysis ✅ MutationObserver ✅ Debugging ✅ User Interface Design ✅ Script Maintenance
£350 GBP 2 päivässä
7,8
7,8

Hello, As a highly skilled and experienced Full-Stack developer, my prime focus is on resolving precisely the kind of performance bottlenecks your project entails. Having worked extensively on similar projects, I am well-versed with vanilla JavaScript and its quirks. This enables me to meticulously identify and rewrite the necessary parts of your date-booking script to ensure it meets your stringent timing requirements while keeping the existing UI intact. Moreover, my ability to strategize and implement effective solutions using various techniques like event delegation or MutationObserver tricks would be invaluable in optimizing the selected routine without a hitch. Rest assured that I understand the importance of performance optimization across different browsers, so your script will work flawlessly on Chrome, Firefox, and Edge. Lastly, my delivery is accompanied by comparative metrics as stated in your project description. These can either be in the form of a before/after timings report or a Lighthouse/DevTools recording which will provide you concrete evidence of the improved performance. Together with delivering an optimized script and any auxiliary functions required, I'll also supply brief yet comprehensive notes to guarantee easy maintenance and extensions for this solution. Let's optimize your booking tool for seamless efficiency! Thanks!
£400 GBP 9 päivässä
7,2
7,2

As a senior developer with 7 years of experience in WordPress, Shopify, React, Laravel, HTML, CSS, Bootstrap, JavaScript, jQuery, Ajax, PHP, SEO and graphic design, I'm excited to help bring your project to life. Let's begin with a conversation. I have read through your requirements, and I'm confident that I’m the perfect fit for this task. My goal is to deliver work that exceeds your expectations. We can finalize the price after our discussion to ensure it aligns with your needs. Let's get started!
£250 GBP 1 päivässä
7,3
7,3

Hi, ➡️ I read your project description; you need to optimize your web-based date-booking tool to reduce the response time when selecting dates. I understand the urgency of minimizing this lag to enhance performance and secure more reservations. ⏺️ I specialize in optimizing and refining JavaScript and jQuery code without altering the UI, ensuring seamless functionality across all major browsers. With my approach using vanilla JS, event delegation, and potentially MutationObserver, I can guarantee faster interactions and improved stability. I will provide you with before and after metrics to demonstrate the effectiveness of the optimizations. Regards, Aftab Ahmad Full Stack Developer (12 Years of Experience)
£250 GBP 7 päivässä
7,3
7,3

Hi there, I’ve optimized JavaScript-heavy web apps before, reducing load times from 5 seconds to under 1 second. I can quickly identify and resolve performance issues, whether they stem from server-side code, front-end scripts, or third-party libraries. In your case, I suspect the issue lies with the jQuery event handler, which may not be firing optimally. I can replace it with a more efficient approach, such as using a MutationObserver to directly monitor the DOM for changes and trigger the date selection process only when a new date is available. Let’s schedule a 10-minute introductory call to discuss your project in more detail and ensure I fully understand your needs. I’m available at any time that works for you. I’m eager to learn more about your exciting project. Best, Adil
£550 GBP 7 päivässä
7,3
7,3

Hello I can optimise your date-selection routine to reliably click the first available date in under 0.1s while keeping your existing UI untouched. My plan: - Refactor the current JS/jQuery logic to reduce DOM traversal and unnecessary loops. - Use efficient selectors, event delegation, or MutationObserver where needed for real-time updates. - Benchmark before and after using DevTools/Lighthouse to confirm the speed gain. - Provide a clean, commented script with helper functions and short maintenance notes. I can deliver this as a tested patch compatible with Chrome, Firefox, and Edge within 2–3 days. I’ve handled similar front-end performance bottlenecks in booking systems and interactive calendars . I’m happy to discuss this further in chat and suggest the best solution for your needs. I will deliver high-quality work with 100% satisfaction. I’m also available for a call , one to one conversation can make everything clear and easy. Thanks Sagar
£500 GBP 7 päivässä
7,1
7,1

Hello Famara, I am Warda Haider, a skilled freelancer with expertise in PHP, JavaScript, Web Application, Frontend Development, Web Development, and HTML5. I have carefully reviewed your project requirements for speeding up the date-booking script on your web-based tool. I understand the importance of optimizing the selection routine to enhance user experience and increase reservations. I propose to refactor or rewrite the selection routine to ensure it identifies and clicks the first available date within 0.1 s under real-world load. I will maintain the existing UI while improving the underlying script for faster performance. I will provide you with comparative metrics to showcase the performance gain post-optimization. Please review my portfolio for examples of my previous work in frontend development and web applications. I look forward to discussing this project further with you. Best regards, Warda Haider - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH
£250 GBP 8 päivässä
6,8
6,8

Hi there, I’ve reviewed your PHP project requirements and would be glad to help. With 5+ years of experience in PHP and backend development, I specialize in creating secure, scalable, and high-performing web applications using modern frameworks like Laravel and CodeIgniter. I’ll begin with a clear development plan, share regular progress updates, and ensure the final product is well-tested and optimized for performance and security. Let’s connect to discuss your project goals — I’m ready to get started! Best, Bhargav PHP Developer | Laravel & Backend Expert
£500 GBP 7 päivässä
6,9
6,9

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
£500 GBP 7 päivässä
6,6
6,6

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