Zhentiw - 博客园

2019年4月2日

[Go] Returning Multiple Values from a Function in Go

摘要： Returning multiple values from a function is a common idiom in Go, most often used for returning values along with potential errors. We'll go over how 阅读全文

posted @ 2019-04-02 18:19 Zhentiw 阅读(152) 评论(0) 推荐(0)

[React] Validate React Forms with Formik and Yup

摘要： Validating forms in React can take several lines of code to build. However, Formik's ErrorMessage component and Yup simplify that process. 阅读全文

posted @ 2019-04-02 18:08 Zhentiw 阅读(407) 评论(0) 推荐(0)

[Algorithm] Inorder Successor in a binary search tree

摘要： For the given tree, in order traverse is: visit left side root visit right side The successor is the one right next to the target: So, given the tree 阅读全文

posted @ 2019-04-02 16:33 Zhentiw 阅读(257) 评论(0) 推荐(0)

2019年4月1日

[Docker] Building a Node.js Image

摘要： Create a Dockerfile: Build Dockerfile: Run image: 阅读全文

posted @ 2019-04-01 19:33 Zhentiw 阅读(222) 评论(0) 推荐(0)

[Algorithm] Delete a node from Binary Search Tree

摘要： The solution for the problem can be divided into three cases: case 1: if the delete node is leaf node, then we can simply remove it case 2: if the del 阅读全文

posted @ 2019-04-01 16:45 Zhentiw 阅读(450) 评论(0) 推荐(0)

[Javascript] Check both prop exists and value is valid

摘要： Sometime you need to check one prop exists on the object and value should not be ´null´ or ´undefined´. One problem people may occur with: Here we mis 阅读全文

posted @ 2019-04-01 15:11 Zhentiw 阅读(149) 评论(0) 推荐(0)

[Algorithm] Check if a binary tree is binary search tree or not

摘要： What is Binary Search Tree (BST) A binary tree in which for each node, value of all the nodes in left subtree is less or equal and value of all the no 阅读全文

posted @ 2019-04-01 04:36 Zhentiw 阅读(339) 评论(0) 推荐(0)

2019年3月31日

[PureScript] Break up Expressions into Cases in PureScript using Simple Pattern Matching

摘要： Pattern matching in functional programming languages is a way to break up expressions into individual cases. We are going to go through how to pattern 阅读全文

posted @ 2019-03-31 20:08 Zhentiw 阅读(186) 评论(0) 推荐(0)

[Docker] Hooking a Volume to Node.js Source Code

摘要： Normally when you create a Volume, it will store in Docket Host, you can also tell the folder which you want docket to store the volume. You can check 阅读全文

posted @ 2019-03-31 19:06 Zhentiw 阅读(196) 评论(0) 推荐(0)

2019年3月30日

[PureScript] Basic Data Constructors in PureScript

摘要： PureScript types are very extensive and we are going to experiment with type constructors and how to make then use them. We can define a custom data t 阅读全文

posted @ 2019-03-30 23:54 Zhentiw 阅读(142) 评论(0) 推荐(0)

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