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Month: September 2020

How to generate AST(Abstract Syntax Tree) of javascript code?

Node.js / September 25, 2020 / TopCode / 0

Introduction Abstract Syntax Tree or AST is syntactic tree representations of a code. Each node of the tree denotes a construct occurring in the source code. This is a fundamental part of the way a compiler works. The syntax is “abstract” as it does not represent every detail appearing in the real syntax, but rather

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How to use NewRelic’s instrumentation APIs in Node.js

Node.js / September 23, 2020 / sumitsuthar94 / 0

New Relic provides instrumentation APIs for Node.js that allow you to customize the data that is collected and reported to the New Relic APM dashboard. Here’s how you can use these APIs: These are just a few examples of the instrumentation APIs provided by New Relic for Node.js. You can find more information and examples

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Comparison with NaN in Javascript | isNaN() Function JS

Node.js / September 22, 2020 / TopCode / 0

Introduction In this blog post, You will learn about a common JavaScript mistake which most of the developers don’t know. Let’s assume you are doing some string manipulation and it resulted into NaN (Not-a-Number). Suppose you are using Javascript’s parseInt() function as follows: As we know that “Foo” is not a integer value, therefore variable

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Create Video Streaming Server in Node.js

Node.js / September 15, 2020 / TopCode / 0

Introduction: When developing a video streaming server in Node.js, the main components you need are a streaming media source (such as a live webcam or video file), a streaming media server (such as Node.js), and a streaming protocol (such as RTSP or WebRTC). To create a video streaming server in Node.js, you will need to

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How to Open File in Node.js?

Node.js / September 7, 2020 / TopCode / 0

Introduction Opening a file is a common programming technique. Every web application does a file open operation. Whenever a file read or file write operation executes eventually it does a file open call as well. Without file open operation, reading and writing to a file are not possible. To open file in Node.js, We can

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