816 subscribers
6 months ago • VTR Coding Telugu
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1 year ago • VTR Coding Telugu
Which company created React JS?
Microsoft
18 votes
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1 year ago • VTR Coding Telugu
What does the await keyword do?
Pauses the function execution until a Promise is resolved
Creates a new thread for async code
Automatically retries failed Promises
Makes a function synchronous
35 answered
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1 year ago • VTR Coding Telugu
for (var i = 0; i < 3; i++) {
setTimeout(() => console.log(i), 100);
}0 1 2
3 3 3
0 1 2 3
undefined
9 answered
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1 year ago • VTR Coding Telugu
let count = 0;
(function () {
if (count === 0) {
let count = 1;
console.log(count);
}
console.log(count);
})();1, 1
1, 0
0, 1
undefined, 1
7 answered
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1 year ago • VTR Coding Telugu
Which method is used to convert a JSON string into a JavaScript object?
JSON.stringify()
JSON.parse()
JSON.convert()
JSON.toObject()
22 answered
2
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1 year ago • VTR Coding Telugu
What will typeof null return?
"null"
"object"
"undefined"
"boolean"
12 answered
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1 year ago • VTR Coding Telugu
How do you create a function in JavaScript?
function myFunction() {}
def myFunction() {}
create myFunction() {}
function:myFunction() {}
49 answered
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1 year ago • VTR Coding Telugu
Which of the following is NOT a JavaScript data type?
String
Number
Float
Boolean
15 answered
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1 year ago • VTR Coding Telugu
What is a closure in programming?
A function that is immediately invoked
A function bundled with its lexical environment
A function that does not return anything
A function without parameters
47 answered
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