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ECMAScript Interview Questions and Answers
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Questions
ECMAScript
0
votes
Q: What are constants?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#webpack-constants
0
votes
Q: What are the classes and proxies?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#webpack-classes
0
votes
Q: What is the advantage of using Webpack?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#webpack-advantages
0
votes
Q: What is Webpack ?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#webpack
0
votes
Q: What is spread, default and rest parameter?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-spread
0
votes
Q: Define Temporal Dead Zone in ES6.
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-temporal
0
votes
Q: What is a generator in JavaScript?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-javascript
0
votes
Q: Explain the reason for using ES6 classes.
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-classes
0
votes
Q: Differentiate between .call and .apply.
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-call
0
votes
Q: Differentiate between ES6 class and ES5 function constructors.
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-es5
0
votes
Q: Explain the benefits of using spread syntax in ES6. How is it different from the rest of the syntax?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-benefit
0
votes
Q: Explain the motivation behind Symbols to ES6.
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6
0
votes
Q: Why are arrow functions used in ES6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6
0
votes
Q: What do you mean by IIFEs (Immediately Invoked Function Expressions)?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#iifes
0
votes
Q: Explain the difference between ES5 and ES6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es5-vs-es6
0
votes
Q: How To Create A Javascript Class In Es6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-javascript
0
votes
Q: Explain Destructuring Assignment In Es6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-destructing-assignment
0
votes
Q: What Is Spread Operator In Es6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-spread-operator
0
votes
Q: What Are Template Literals In Es6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#template-es6
0
votes
Q: Explain Constants In Es6?
asked
Mar 2, 2020
in
ECMAScript
by
rajeshsharma
(
23.9k
points)
#es6-constants
0
votes
Q: All major JavaScript Implementations are based on which standard?
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: The following code implements the ______ feature of ES6 function myFunction(x, y, z) { } var args = [0, 1, 2]; myFunction(...args);
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Check the Below code and check correct or not const { x, y } = { x: 11, y: 8 }; is the Same as const { x: x, y: y } = { x: 11, y: 8 };
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: What will be the output of following code snippet? function foo(a = 10, b = 5) { console.log(a, b); } foo(6);
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: During destructuring, you can either declare variables or assign to them, or both. (1)False (2)True
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Destructuring helps us to extract multiple values from an object via __________.
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Which is not a lexical inside arrow functions?
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Variables declared in a scope are accessible in ___________.
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Template literals can be defined as _________.
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
0
votes
Q: Arrow Functions are less verbose than traditional functions (1)False (2)True
answered
Jan 21, 2020
in
ECMAScript
by
GeorgeBell
(
5.1k
points)
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