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Creational patterns provide object creation mechanisms that increase flexibility and reuse of existing code. Factory method: Provides an interface for 阅读全文
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Just for fun... Given a number (always positive) as a type. Your type should return the number decreased by one. For example: type Zero = MinusOne<1> 阅读全文
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Blog: https://www.geeksforgeeks.org/es6-trampoline-function/ Stackoverflow problem for recursion: const sumBelow = (number, sum = 0) => ( number 0 ? s 阅读全文
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Serverless framework with AWS Link to each sections Table of Content: Part 0: Serverless Project structure Part 1: DynamoDB & ApiGateway Part 2: Event 阅读全文
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Storage Services: S3 Glacier CloudFront Elastic Block Store (EBS) Storage Gateway Snow family Database Overview Block storage: Used on local networks 阅读全文
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S3 Features Prefiees and delimiters For example: the file name in S3 can be: `marking/plans/kpi_2021_1.pdf`. The point is make it looks like a folder 阅读全文
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In our previous code, we have seen this partten for operators: // #region operators const concat = curry((broadcaster, listener) => { let string = ''; 阅读全文
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Generators can yield promises which can work with the "for await of" loop syntax. This lesson shows how all the pieces fit together and explains why t 阅读全文
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In this post, we are going to see how to use Ramda Lens. For example, we have data: R.lens: R.lens takes a getter and a setter: R.lensProp: There is a 阅读全文
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Just like the State ADT an Array is also an Applicative Functor. That means we can do the same tricks with liftA2 with Array that we have been doing w 阅读全文
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Use custom Cypress command for reusable assertions We’re duplicating quite a few commands between the registration and login of our user for assertion 阅读全文
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Use Cypress to test user registration Let’s write a test to fill out our registration form. Because we’ll be running this against a live backend, we n 阅读全文
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Despite the fact that Cypress is an application that runs natively on your machine, you can install it and add it as a dependency just like all other 阅读全文
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Ensure Functions are Called Correctly with JavaScript Mocks Often when writing JavaScript tests and mocking dependencies, you’ll want to verify that t 阅读全文
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1. Color Picker (Chrome) You might know how to use color picker in Chrome, recently there is a feature inside color picker which is "Contrast Ratio", 阅读全文
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We'll examine how to unnest function calls, capture assignment, and create a linear data flow with a type we call Box. This is our introduction to wor 阅读全文
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Well, this stuff will be a little bit strange if you deal with it first time. Container Object: Just a wrapper / contianer for values No Method No Nou 阅读全文
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First, what is 'High Order function', basic just a function, inside the function return another fuction. For example: Decorators is a subset of high o 阅读全文
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Somehow it looks like reflect in Java. For example: We define an mothod on the Object, it called defineMethod(). It accepts two arguements, one is met 阅读全文
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In this lesson, you'll learn how to implement smooth state transitions in your web applications using the browser's built-in View Transitions API. We' 阅读全文
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var a = { n: 1 }; var b = a; a.x = a = { n: 2 }; console.log(a.x); // undefined console.log(b.x); // {n: 2} Javascript see the following code, mainly 阅读全文
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ABT SDK Design The entire ABT SDK includes numerous APIs and tools to support application development, including: ABTCore: Provides the core functiona 阅读全文
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How to Control Requests? Controlling requests involves addressing several key issues: 1. How to Maximize Bandwidth Utilization In chunked uploads, a l 阅读全文
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Code design SDK has 3 layers: Upload Protocol: Defines the communication format between the frontend and backendt upload-core: Protocol-based API that 阅读全文
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How to coordinate frontend and backend? File upload involves interaction between the frontend and backend, requiring the establishment of a standard c 阅读全文
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Background Our SaaS platform includes the upload of large files such as company information and meeting videos. Without special handling, the followin 阅读全文
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We have a RadioGroupcomponent, when the prop verticalis true, we want all the Radiowrap with div, otherwise wrap with span. <template> <component v-fo 阅读全文
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Write big number // NOT 100000 // Better 100_000 1e5 Shorthands syntax for floating number // Normal 0.123 // The same .123 // eX also apply to floati 阅读全文
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<template> <label v-if="label">{{ label }}</label> <select class="field" :value="modelValue" v-bind="{ ...$attrs, onChange: ($event) => { $emit('updat 阅读全文