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Beware the performance cost of async_hooks (Node 8)

I was excited about async_hooks having finally landed in Node.js 8, as it would enable me to share important troubleshooting information with all code involved in handling a particular request. However it turned out to have terrible impact of our CPU usage (YMMV):                 This was quite extreme and is likely related to ...

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JavaScript Array find() Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the Array.find() method. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The ...

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Build a Simple GraphQL API Service with Express

“I love writing authentication and authorization code.” ~ No Web Developer Ever. Tired of building the same login screens over and over? Try the Okta API for hosted authentication, authorization, and multi-factor auth. GraphQL has become an immensely popular alternative to REST APIs. The flexibility you get from using GraphQL makes it easier for developers to get any information they ...

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JavaScript Array filter() method Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the Array.filter() method. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The ...

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JavaScript switch Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the switch conditional statement. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. ...

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JavaScript Array Methods Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the different array methods in the javascript language. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, ...

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The Serverless Revolution: Why and How The Movement Will Allow Teams to Deploy With More Velocity and Confidence

Drive DevOps success with better, more informed decisions based on real-time facts, not opinions. Summary Serverless or Function-as-a-Service (FaaS) design patterns have been picking up steam. With the recent release of KNative from Google Cloud, let’s take a closer look at the serverless movement. The serverless movement has recently received another jolt of momentum with Google’s recent release of KNative. ...

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JavaScript String substring() Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the JavaScript string subString() method. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support ...

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JavaScript Array map() Example

Greetings readers, in this tutorial, we will show how to use the JavaScript scripting language and the JavaScript Array map() method. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. It is supported by most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft ...

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