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For example we have a rest endpoint, we need to validate the data we receive in correct format: import { IsMongoId, IsString, IsBoolean, IsInt } from 阅读全文
posted @ 2020-02-04 14:57
Zhentiw
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Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: The number of elements initialized in nums1 and num 阅读全文
posted @ 2020-01-30 04:10
Zhentiw
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Yarn 2 is workspace aware. When you need to upgrade a package in one workspace, yarn will ask you if you want to resolve the version of the package to 阅读全文
posted @ 2020-01-27 22:14
Zhentiw
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yarn dlx can be used to run packages without installing them. This is useful for packages like create-react-app and gatsby that scaffold out apps for 阅读全文
posted @ 2020-01-27 22:13
Zhentiw
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This lesson goes over how to install yarn 2 through npm. To install yarn 2 globally, we use npm install -g yarn@berry Init a project: yarn init -y To 阅读全文
posted @ 2020-01-27 22:03
Zhentiw
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1 . Create a directory for global packages mkdir "${HOME}/.npm-packages" 2. Tell npm where to store globally installed packages npm config set prefix 阅读全文
posted @ 2020-01-27 21:59
Zhentiw
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// eslint exercise 4 (no-console) // When you're finished with this exercise, run // "npm start exercise.eslint.5" // to move on to the next exercise 阅读全文
posted @ 2020-01-23 21:25
Zhentiw
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function looksLike(a, b) { return ( a && b && Object.keys(b).every(bKey => { const bVal = b[bKey] const aVal = a[bKey] if (typeof bVal 'function') { r 阅读全文
posted @ 2020-01-23 20:39
Zhentiw
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// eslint exercise 1 (no-console) // When you're finished with this exercise, run // "npm start exercise.eslint.2" // to move on to the next exercise 阅读全文
posted @ 2020-01-23 20:37
Zhentiw
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Given a singly linked list, determine if it is a palindrome. Example 1: Input: 1->2 Output: false Example 2: Input: 1->2->2->1 Output: true /** * Defi 阅读全文
posted @ 2020-01-23 04:34
Zhentiw
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