Salesforce Developer JavaScript-Developer-I Exam Dumps

If the dependency was added as a dev dependency (yarn add --dev), it goes into devDependencies.

When NODE_ENV=production, Yarn (and npm) typically skip devDependencies on install.

Thus the package doesn’t get installed for other team members in a production environment.

YARN_ENV is not a standard variable, --save is npm syntax (and Yarn saves by default), and --add is not how Yarn works (the command itself is yarn add).

Requirement:

getNextValue() should run only if handleObjectValue(x) does not throw an error.

If an error occurs, handleError(error) should run, and getNextValue() should be skipped.

Option B:

try {

handleObjectValue(x);

getNextValue();

} catch (error) {

handleError(error);

}

Behavior:

If handleObjectValue(x) succeeds (no error):

Execution continues to getNextValue();.

If handleObjectValue(x) throws:

Control jumps directly to catch, getNextValue() is skipped.

handleError(error); is called.

This matches the requirement perfectly.

Why others are incorrect:

A: } then { is invalid JavaScript syntax.

C:

try {

handleObjectValue(x);

} catch (error) {

handleError(error);

}

getNextValue();

getNextValue() is called after the try...catch regardless of whether an error occurred. Not acceptable.

D: finally always runs:

try {

handleObjectValue(x);

} catch (error) {

handleError(error);

} finally {

getNextValue();

}

getNextValue() will execute in both success and error cases.

Therefore, the correct approach is B.

Concepts: try/catch control flow, finally semantics, placing code inside vs outside try/catch blocks.

The question is about:

Web frameworks that run on Node.js

Used to build servers and APIs

With established communities.

From the given options:

Angular:

A front-end framework running in the browser, not a Node.js server framework.

Gatsby:

A React-based static site generator; uses Node tooling but is not primarily a Node server framework.

Next / Next.js:

Server-side rendering / full-stack frameworks built on Node.js and React.

Used to create both server-rendered pages and APIs.

They have active communities and are “seasoned” compared to a hypothetical Minimalist.js.

Although typical Node back-end frameworks would include Express.js, Koa, or NestJS, given the options provided, the best fits for server-side frameworks with Node.js and an ecosystem are:

Next (interpreted as Next.js)

Next.js

Thus, the correct pair from the list is B and D.

Concepts: Node.js web frameworks, server-side rendering, community-backed frameworks vs minimal/new frameworks.

fullName is defined as a getter :

get fullName() { ... }

Getters are accessed like properties , not like functions.

So:

cat.fullName; // " Fancy Whiskers "

No parentheses.

Why others are wrong:

A: cat.fullName() tries to call the returned string as a function.

B and C: These properties (get, function) do not exist; they are misinterpretations of syntax.