Given an array of directed roads (graph), guaranteed to have no cycles. How can you reach from point 1 to point N?
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Create a new type based on PartialDelivery that includes only the fields name and address (Pick).
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Today we will design a messenger. Review the interface layout and functional requirements. You need to gather non-functional requirements, discuss the technical stack, frontend components and services, data models, API endpoints, and the overall system architecture.
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React task: implement a component to find substring occurrences in text. Requirements: load text from API on first render, show loading indicator, handle errors, find matches case-insensitively, highlight matches, show total count, load more text button.
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Implement your own memoization (caching) function that caches the result of a function when called repeatedly with the same arguments, including handling primitives and undefined, as well as the ability to clear the cache (clearCache).
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How is it better to show a victory message — through alert or rendering it in the UI?
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// Describe a type that represents JS objects with a private // identifier and a method to get it, as well as a creation date field. // The identifier can contain a number or a string. // The creation field can also contain a string or a number. // The identifier and creation date field always have the same type. let a = { getId: () => 1, createdAt: [phone] } let b = { getId: () => 'id', createdAt: '[phone]T20:00:00Z' }
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How should authorization occur?
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What arguments does React.memo accept besides the component itself?
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If you run code with Observable without subscribe and Promise without then, how many HTTP requests will be made and why?
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Implement your own promiseAll function, which is an analog of Promise.all: takes an array of promises, returns a promise with an array of results in the original order, immediately calls reject on the first rejected.
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Look at the first callback you pass to runSpinner (onRoll) — does it accept any argument that you specified?
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What other utility types in TypeScript do you know? Name the most popular ones.
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Why will the Child component re-render when clicking the 'Rerender' button in the root component, and why does it also re-render when typing in the input?
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// Given three types. Based on them, create a Delivery type that contains all fields from the provided types.
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How to override the context (this) inside loadScript when calling the function if loadScript uses this?
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You need to write a function that returns a function accepting any arguments and wraps a callback (error-first callback style) into a promise (promisify).
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