Salesforce Certified JavaScript Developer I Practice Test
Salesforce Certified JavaScript Developer I के लिए अपना आत्मविश्वास बढ़ाएँ। अवधारणाओं का अभ्यास करें, उत्तरों को समझें और हर सवाल के साथ अपना ज्ञान मज़बूत करें।
एक नमूना सवाल आज़माएँपरीक्षा का परिचय और विवरण
The Salesforce Certified JavaScript Developer I exam validates the skills required to build dynamic, efficient, and scalable user interfaces on the Salesforce Platform using modern JavaScript. This certification is designed for developers who architect and implement client-side logic for Lightning Web Components (LWC), Aura Components, and other JavaScript-based solutions within the Salesforce ecosystem. The exam tests a comprehensive understanding of core JavaScript (ES6+), the Document Object Model (DOM), asynchronous programming, debugging, and the specific patterns and security considerations unique to the Salesforce environment. By earning this credential, you demonstrate a professional-level ability to create performant, secure, and maintainable JavaScript code that enhances user experience and integrates seamlessly with Salesforce data and services. It is a critical step for developers looking to specialize in the front-end layer of the Salesforce platform.
नमूना प्रश्न
अभ्यास कैसे काम करता है, यह जानने के लिए एक उत्तर चुनें और व्याख्या देखें।
An async save function catches an error, logs it, and then returns normally. The caller's `.catch()` never runs, so the UI marks the save successful. What should Drew do? Which answer best satisfies the requirement?
Alex builds an infinite-scroll 2025 page and wants to load more results when a sentinel element nears the viewport, without measuring scroll position on every scroll event. Which browser API is the best fit? Which answer best satisfies the requirement?
Riley reviews `function createCounter() { let count = 0; return { inc: () => ++count }; }` for a reused partner console. What happens when two counters are created? Which answer best satisfies the requirement?
A 2025 accessibility review finds a custom button implemented as a ` ` only responds to mouse clicks. Which fix best aligns DOM event behavior with keyboard users? Which answer best satisfies the requirement?
Avery writes a unit test for `saveOrder()` that returns a Promise. The test calls `saveOrder(); expect(api.post).toHaveBeenCalled();` and sometimes passes before assertions inside the promise chain run. What is the best fix? Which answer best satisfies the requirement?
करियर के अवसर और वेतन
जब तक लोकल रेंज न दिखे, ये US मार्केट के आंकड़े हैं।
इस परीक्षा में क्या शामिल है
पढ़ाई की योजना बनाने के लिए प्रकाशित डोमेन भार का उपयोग करें। अभ्यास के परिणाम आपके सर्टिफिकेशन परीक्षा के स्कोर का अनुमान नहीं हैं।