JavaScript Developer I exam

What are two unique features of functions defined with a fat arrow as compared to normal function definition? Choose 2 answersA . The function generated its own this making it useful for separating the function’s scope from its enclosing scope.B . The function receives an argument that is always in...

Refer to the code below: After running this code, which result is displayed on the console?A . > true > falseB . > 5 >undefinedC . > 5 > -1D . > 5 > 0View AnswerAnswer: B

Which three browser specific APIs are available for developers to persist data between page loads? Choose 3 answersA . IIFEsB . indexedDBC . Global variablesD . CookiesE . localStorage.View AnswerAnswer: A,B,E

Which statement phrases successfully?A . JSOB . parse ( ‘ foo ’ );C . JSOD . parse ( “ foo ” );E . JSOF . parse( “ ‘ foo ’ ” );G . JSOH . parse(‘ “ foo ” ’);View AnswerAnswer: D

Which statement parses successfully?A . JSOB . parse (""foo"');C . JSOD . parse (""foo'");E . JSOF . parse ("foo");G . JSOH . parse ("foo");View AnswerAnswer: A

Given HTML below: <div> <div id =”row-uc”> Universal Container</div> <div id =”row-aa”>Applied Shipping</div> <div id =”row-bt”> Burlington Textiles </div> </div> Which statement adds the priority = account CSS class to the universal COntainers row?A . Document .querySelector(‘#row-uc’).classes.push(‘priority-account’);B . Document .queryElementById(‘row-uc’).addclass(‘priority-account’);C . Document .querySelector(‘#row-uc’).classList.add(‘priority-account’);D . Document .querySelectorALL(‘#row-uc’).classList.add(‘priority-account’);View AnswerAnswer: B

A developer is asked to fix some bugs reported by users. To do that, the developer adds a breakpoint for debugging. Function Car (maxSpeed, color){ This.maxspeed =masSpeed; This.color = color; Let carSpeed = document.getElementById(‘ CarSpeed’); Debugger; Let fourWheels =new Car (carSpeed.value, ‘red’); When the code execution stops at the breakpoint...

Which option is a core Node,js module?A . PathB . IosC . MemoryD . locateView AnswerAnswer: A

Which three actions can be using the JavaScript browser console? Choose 3 answers:A . View and change DOM the page.B . Display a report showing the performance of a page.C . Run code that is not related to page.D . view, change, and debug the JavaScript code of the page.E...

A developer is creating a simple webpage with a button. When a user clicks this button for the first time, a message is displayed. The developer wrote the JavaScript code below, but something is missing. The message gets displayed every time a user clicks the button, instead of just the...