Zhentiw - 博客园

2019年4月1日

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

posted @ 2019-04-01 19:33 Zhentiw 阅读(245) 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(462) 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(166) 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(356) 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(202) 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(219) 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(169) 评论(0) 推荐(0)

[Algorithm] Check for balanced parentheses using stack

摘要： Algorithm or program to check for balanced parentheses in an expression using stack data structure. For example: The idea to solve the problem is: ope 阅读全文

posted @ 2019-03-30 23:34 Zhentiw 阅读(240) 评论(0) 推荐(0)

2019年3月29日

[PureScript] Introduce to PureScript Specify Function Arguments

摘要： JavaScript does its error-checking at runtime, but PureScript has a compiler, which makes sure that your program has no errors before it converts it a 阅读全文

posted @ 2019-03-29 21:07 Zhentiw 阅读(205) 评论(0) 推荐(0)

2019年3月28日

[Node.js] process.nextTick for converting sync to async

摘要： For example we have a function to check the filesize: It works fine, but the 'fileSize' function has a problem, those part of code run in sync, not as 阅读全文

posted @ 2019-03-28 21:40 Zhentiw 阅读(298) 评论(0) 推荐(0)

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