</How to hire>
NodeJS Developer
Written in 2009 by Ryan Dahl, Node.js is an open source Javascript platform. It provides a library of Javascript modules which unifies the development web platform. Python is used in different fields viz data streaming application, scientific research, I/O bound applications, game development, etc. Any candidate looking for SDET or an embedded software engineer role should have knowledge of Node.js.
Used for hiring
Full stack Developers
UI Developers
SDETs Developers
Skills required
Understanding of HTML5
Knowledge of CSS3
Understanding of OOP concepts
Knowledge of MongoDB
NodeJS Developer Assessment
These tests are highly popular among most recruiters to assess Node.js developers
You can check for the following skills while hiring a Node.js developer-
- A basic understanding of front-end technologies such as such as HTML5, and CSS3
- Knowledge of Node.js and other frameworks such as Express, StrongLoop, etc
- Good knowledge of server-side CSS preprocessors such as Stylus
How this test helps with hiring NodeJS candidates
Steps to assess NodeJS Developers
Create a test
Add questions to assess Java, Javascript, and Node.js skills
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Evaluate the report
Common types of assessments used by our top customers
2 programming questions on Java
Java and JavaScript
NodeJS
Sample questions
In Node.js, which of the following code is used to print Hey after one second?
- setTimeout(function() { console.log("Hey"); }, 1000); Correct Answer
- setTimeout(function() { 1000, console.log("Hey"); });
- setTimeout(function(1000) { console.log("Hey"); });
- setTimeout(function(1000) console.log("Hey"));
In Node.js, what is the significance of the buf.readUIntLE(offset, byteLength[, noAssert]) method?
1.It is a generalized version of all numeric read methods which supports up to 48 bits of accuracy. ‘noAssert’ is set to true to skip the offset validation. The offset is beyond the end of the buffer, Defaults to false.
2.A generalized version of all numeric write methods. Supports up to 148 bits of no accuracy.Set noAssert to false to skip validation of offset. Offset is beyond the end of the buffer. Defaults to false.
3.A generalized version of all numeric read methods. Supports up to 192 bits of accuracy.Set noAssert to true to skip validation of offset. Offset is beyond the start of the array. Defaults to true.
4.A generalized version of all numeric write methods. Supports up to 248 bits of no accuracy.Set noAssert to false to skip validation of offset. Offset is beyond the end of the buffer. Defaults to false.
- 1Correct Answer
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Which of the following given code snippets correctly returns a new buffer which link the same memory as the old, but offset and cropped by the start (defaults to 0) and end (defaults to buffer.length) indexes in node.js?
- " var buffer1 = new Buffer('StudentPoint'); var buffer2 = buffer1.slice(0,9); console.log(""buffer2 content: "" + buffer2.toString()); "Correct Answer
- " var buffer1 = new Buffer('StudentPoint'); console.log(""buffer2 content: "" + buffer2.toString()); "
- " var buffer1 =('StudentPoint'); var buffer2 =.slice(0,9); console.log(""buffer2 content: "" + buffer2.toString()); "
- " var buffer1 =('StudentPoint'); var buffer2 =.slice(0,9);"
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