84. What is the output?
Javob variantlari:
Javob variantlari:
Anonymous Quiz
0%
A: "Sorry, you're too young."
0%
B: "Yay! You're old enough!"
0%
C: ReferenceError
0%
D: undefined
85. What kind of information would get logged?
fetch('https://www.website.com/api/user/1')
.then(res => res.json())
.then(res => console.log(res));85. What kind of information would get logged?
Javob variantlari:
Javob variantlari:
Anonymous Quiz
0%
A: fetch metodining natijasi.
0%
B: fetch metodining ikkinchi marta chaqirilishidan chiqqan natija.
0%
C: Oldingi .then() ichidagi callback funksiyasining natijasi.
0%
D: Har doim undefined bo‘ladi.
86. Which option is a way to set hasName equal to true, provided you cannot pass true as an argument?
function getName(name) {
const hasName = //
}86. Which option is a way to set hasName equal to true, provided you cannot pass true as an argument?
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Javob variantlari:
Anonymous Quiz
0%
A: !!name
100%
B: name
0%
C: new Boolean(name)
0%
D: name.length
87. What's the output?
console.log('I want pizza'[0]);
console.log('I want pizza'[0]);
Anonymous Quiz
0%
A: """
100%
B: "I"
0%
C: SyntaxError
0%
D: undefined
88. What's the output?
function sum(num1, num2 = num1) {
console.log(num1 + num2);
}
sum(10);88. What's the output?
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Javob variantlari:
Anonymous Quiz
0%
A: NaN
100%
B: 20
0%
C: ReferenceError
0%
D: undefined
89. What's the output?
// module.js
export default () => 'Hello world';
export const name = 'Lydia';
// index.js
import * as data from './module';
console.log(data);
89. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: { default: function default(), name: "Lydia" }
0%
B: { default: function default() }
0%
C: { default: "Hello world", name: "Lydia" }
0%
D: Global object of module.js
90. What's the output?
class Person {
constructor(name) {
this.name = name;
}
}
const member = new Person('John');
console.log(typeof member);90. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: "class"
0%
B: "function"
0%
C: "object"
0%
D: "string"
91. What's the output?
let newList = [1, 2, 3].push(4);
console.log(newList.push(5));
91. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: [1, 2, 3, 4, 5]
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B: [1, 2, 3, 5]
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C: [1, 2, 3, 4]
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D: Error
92. What's the output?
function giveLydiaPizza() {
return 'Here is pizza!';
}
const giveLydiaChocolate = () =>
"Here's chocolate... now go hit the gym already.";
console.log(giveLydiaPizza.prototype);
console.log(giveLydiaChocolate.prototype);92. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: { constructor: ...} { constructor: ...}
0%
B: {} { constructor: ...}
0%
C: { constructor: ...} {}
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D: { constructor: ...} undefined
93. What's the output?
const person = {
name: 'Lydia',
age: 21,
};
for (const [x, y] of Object.entries(person)) {
console.log(x, y);
}93. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: name Lydia and age 21
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B: ["name", "Lydia"] and ["age", 21]
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C: ["name", "age"] and undefined
0%
D: Error
94. What's the output?
function getItems(fruitList, ...args, favoriteFruit) {
return [...fruitList, ...args, favoriteFruit]
}
getItems(["banana", "apple"], "pear", "orange")94. What's the output?
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Javob variantlari:
Anonymous Quiz
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A: ["banana", "apple", "pear", "orange"]
0%
B: [["banana", "apple"], "pear", "orange"]
0%
C: ["banana", "apple", ["pear"], "orange"]
0%
D: SyntaxError