Nov 2, 2023
What is the result of the following JavaScript code?
var x = 10; function foo() { var x = 5; console.log(x); } foo(); console.log(x);
A) 5 and 10 B) 5 and 5 C) 10 and 5 D) 10 and 10
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What is the result of the following JavaScript code?
var x = 10; function foo() { var x = 5; console.log(x); } foo(); console.log(x);
A) 5 and 10 B) 5 and 5 C) 10 and 5 D) 10 and 10
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What will the following JavaScript code output?
console.log(5 + "5");
A) 10 B) 55 C) Error D) NaN
What is the correct way to declare a variable in JavaScript?
A) new var myVariable; B) let myVariable; C) variable myVariable; D) declare myVariable;
Which keyword is used to declare a variable in JavaScript?
a) var b) int c) string d) variable
Which of these JavaScript frameworks and technologies, what area are you most knowledgeable about or interested in?
A. Angular B. Node C. Vue.js D. React
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Which framework is Express.js?
A. Node.js B. JavaScript C. React.js D. Angular.js
#javascriptquiz
#javascriptquiz