Explain promise in javascript?

864

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What is the use of let & const in javascript?

955

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What is use of settimeout function in javascript?

1107

---

What are the different types of errors available in javascript?

997

---

How to calculate fibonacci numbers in javascript?

1030

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How to import all exports of a file as an object.

970

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List the comparison operators supported by javascript?

967

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What is javascript bom?

1071

---

Explain “use strict” ?

936

---

What is the difference between the substr() and substring() functions in javascript?

982

---

Explain what is javascript? List some data types supported by javascript?

891

---

Write a program to reverse a string in pure javascript?

977

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How to get inner html of an element in javascript?

975

---

How to you change the title of the page by javascript?

929

---

What close() does in javascript?

949

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