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Latest JavaScript Developer I Exam Dumps Questions
The dumps for JavaScript Developer I exam was last updated on Jun 25,2025 .
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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
Cloud Kicks has a class to represent items for sale in an online store, as shown below: Class Item{ constructor (name, price){ this.name = name; this.price = price; } formattedPrice(){ return ‘s’ + String(this.price);}} A new business requirement comes in that requests a ClothingItem class that should have all of the properties and methods of the Item class but will also have properties that are specific to clothes. Which line of code properly declares the clothingItem class such that it inherits from Item?
Universal Container(UC) just launched a new landing page, but users complain that the website is slow. A developer found some functions that cause this problem. To verify this, the developer decides to do everything and log the time each of these three suspicious functions consumes. console.time(‘Performance’); maybeAHeavyFunction(); thisCouldTakeTooLong(); orMaybeThisOne(); console.endTime(‘Performance’); Which function can the developer use to obtain the time spent by every one of the three functions?
Consider type coercion, what does the following expression evaluate to? True + 3 + ‘100’ + null
Refer to HTML below: <div id =”main”> <div id = “ card-00”>This card is smaller.</div> <div id = “card-01”> The width and height of this card is determined by its contents. </div> </div> Which expression outputs the screen width of the element with the ID card-01?
Exam Code: JavaScript Developer I Q & A: 230 Q&As Updated: Jun 25,2025
