Salesforce Certified JavaScript Developer I Practice Test - Questions Answers, Page 15

Refer to code below:

console.log(0);

setTimeout(() => (

console.log(1);

});

console.log(2);

setTimeout(() => {

console.log(3);

), 0);

console.log(4);

In which sequence will the numbers be logged?

A developer implements and calls the following code when an application state change occurs:

Const onStateChange =innerPageState) => {

window.history.pushState(newPageState, ' ', null);

}

If the back button is clicked after this method is executed, what can a developer expect?

Refer to the expression below:

Let x = ('1' + 2) == (6 * 2);

How should this expression be modified to ensure that evaluates to false?

A developer wants to define a function log to be used a few times on a single-file JavaScript script.

01 // Line 1 replacement

02 console.log('"LOG:', logInput);

03 }

Which two options can correctly replace line 01 and declare the function for use?

Choose 2 answers

A developer wants to use a module named universalContainersLib and then call functions from it.

How should a developer import every function from the module and then call the functions foo and bar?

Which two console logs output NaN?

Choose 2 answers | |

A developer wants to use a try...catch statement to catch any error that countSheep () may throw and pass it to a handleError () function.

What is the correct implementation of the try...catch?

A developer has a formatName function that takes two arguments, firstName and lastName and returns a string. They want to schedule the function to run once after five seconds.

What is the correct syntax to schedule this function?

Which statement parses successfully?