Zhentiw - 博客园

2020年2月21日

摘要： "let" keyword, the same as "const" does hoist the variable. But different from 'var', it does both hoist and assign value as "undefined". "let" in oth 阅读全文

posted @ 2020-02-21 19:48 Zhentiw 阅读(115) 评论(0) 推荐(0)

[AST Babel Plugin] Hanlde ArrowFunction && FunctionExpression

摘要： Continue with previous post: https://www.cnblogs.com/Answer1215/p/12342540.html Now we need to think about functionExpression and ArrowFunction: funct 阅读全文

posted @ 2020-02-21 19:13 Zhentiw 阅读(467) 评论(0) 推荐(0)

[AST Babel] Add function name into the console log 'path.findParent(t.isFunctionDeclaration)'

摘要： Continue with the previous post: https://www.cnblogs.com/Answer1215/p/12337243.html What we want to do in this post, is adding parent function name in 阅读全文

posted @ 2020-02-21 18:41 Zhentiw 阅读(285) 评论(0) 推荐(0)

【逻辑思维】辨识诡辩的五个方法

摘要：第一个原则：四项错误一个三段论中，只能有三个不同的概念。如果有四个，就一定错了比如： “人已经存在几百万年了，而你没有存在几百万年，所以你不是人”。看上去只有三个概念， “人，几百万年，你”。但是前后两个“人”的概念不同，前一个是指“人类”，而后一个指的是“人体”。所以总共有四个概念“你，几百万阅读全文

posted @ 2020-02-21 04:40 Zhentiw 阅读(2466) 评论(0) 推荐(0)

2020年2月20日

[AST Babel Plugin] Transform code, add line:column number for console log

摘要： For example we have current code: function add(a, b) { console.log(a, b) return a + b } function subtract(a, b) { console.log(a, b) return a - b } add 阅读全文

posted @ 2020-02-20 20:15 Zhentiw 阅读(228) 评论(0) 推荐(0)

[Javascript] Wait for the Fastest JavaScript Promise to Be Fulfilled with Promise.any()

摘要： The Promise.any() method accepts an array (or any other iterable) of promises as a parameter. It returns a Promise object that is fulfilled with the v 阅读全文

posted @ 2020-02-20 19:01 Zhentiw 阅读(202) 评论(0) 推荐(0)

[Javascript] Wait for Multiple JavaScript Promises to Settle with Promise.allSettled()

摘要： The Promise.allSettled() method accepts an array (or any other iterable) of promises as a parameter. It returns a Promise object that is fulfilled wit 阅读全文

posted @ 2020-02-20 18:27 Zhentiw 阅读(461) 评论(0) 推荐(0)

[Unit Testing Angular] fakeAsync

摘要： In this post, we are going to see how to use 'fakeAsync' to test async code in Angular Context. fakeAsync using Zoom.js underhook, it detects all the 阅读全文

posted @ 2020-02-20 17:59 Zhentiw 阅读(300) 评论(0) 推荐(0)

[Javascript] Introduction to Microtasks

摘要： In Javascript, there are two types of event loops for async tasks. First one, is well known one, for example, setTimeout, http request, click event wi 阅读全文

posted @ 2020-02-20 17:04 Zhentiw 阅读(132) 评论(0) 推荐(0)

[Algorithm] 474. Ones and Zeroes

摘要： In the computer world, use restricted resource you have to generate maximum benefit is what we always want to pursue. For now, suppose you are a domin 阅读全文

posted @ 2020-02-20 05:15 Zhentiw 阅读(214) 评论(0) 推荐(0)

Answer1215

公告