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Javascript Software Engineer Interview Questions

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1,681 javascript software engineer interview questions shared by candidates

1. Given two strings “sentence” and message” and asked me to return a Boolean if a message can be generated from the given sentence(letters with in the sentence can not be reused) Ex: Sentence = “today is monday” Message = “sad day” Output : true Ex: Sentence = “today is monday” Message = “bad day” Output : false 2. Create a todo app using react. 3. Object oriented design of a parking lot. 4. Create react jsx dynamically using JSON response. 5. Print multi dimensional array in a spiral order. Ex: [[1,2,3,4], [5,6,7,8], [9,10,11,12], [13,14,15,16]] Output: 1,2,3,4,8,12,16,15,14,13,9,5,6,7,11,10 6. Reverse the given string as a sentence. Ex: “today is friday” Output: “friday is today” 7. Check If a given string is a valid HTML or not. Ex: “<head></head><body></body>” Output: true Ex: “<head></head><body>” Output: false
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Senior Javascript Developer

Interviewed at Docusign

3.6★
Apr 23, 2020

1. Given two strings “sentence” and message” and asked me to return a Boolean if a message can be generated from the given sentence(letters with in the sentence can not be reused) Ex: Sentence = “today is monday” Message = “sad day” Output : true Ex: Sentence = “today is monday” Message = “bad day” Output : false 2. Create a todo app using react. 3. Object oriented design of a parking lot. 4. Create react jsx dynamically using JSON response. 5. Print multi dimensional array in a spiral order. Ex: [[1,2,3,4], [5,6,7,8], [9,10,11,12], [13,14,15,16]] Output: 1,2,3,4,8,12,16,15,14,13,9,5,6,7,11,10 6. Reverse the given string as a sentence. Ex: “today is friday” Output: “friday is today” 7. Check If a given string is a valid HTML or not. Ex: “<head></head><body></body>” Output: true Ex: “<head></head><body>” Output: false

During the first interview, they asked me questions to know my expectations and what I was looking for in a company. The second one was about my career and the processes that I'm used to. For the third one, they just asked me to write a new (really basic) feature in my code challenge, and then we talked about how I would react in different situations.
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Javascript Engineer

Interviewed at VEED.IO

4.4★
Oct 24, 2022

During the first interview, they asked me questions to know my expectations and what I was looking for in a company. The second one was about my career and the processes that I'm used to. For the third one, they just asked me to write a new (really basic) feature in my code challenge, and then we talked about how I would react in different situations.

Me pidieron resolver dos ejercicios de lógica y algoritmos, la primera tuvo que ver con una matriz cuadrada y la segunda con convertir un entero en un string sin usar un método nativo. Después me pidieron encontrar errores en páginas web.
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Javascript Developer

Interviewed at Oracle

3.5★
Jan 25, 2022

Me pidieron resolver dos ejercicios de lógica y algoritmos, la primera tuvo que ver con una matriz cuadrada y la segunda con convertir un entero en un string sin usar un método nativo. Después me pidieron encontrar errores en páginas web.

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