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Bumps [tar](https://github.com/npm/node-tar) from 4.4.13 to 4.4.19. Commits 9a6faa0 4.4.19 70ef812 drop dirCache for symlink on all platforms 3e35515 4.4.18 52b09e3 fix: prevent path escape using drive-relative paths bb93ba2 fix: reserve...

dependabot[bot]

Bumps [path-parse](https://github.com/jbgutierrez/path-parse) from 1.0.6 to 1.0.7. Commits See full diff in compare view [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter...

dependabot[bot]

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.24 to 7.0.36. Release notes Sourced from postcss's releases. 7.0.36 Backport ReDoS vulnerabilities from PostCSS 8. 7.0.35 Add migration guide link to PostCSS 8 error text. 7.0.34...

dependabot[bot]

经常被面试官问道的JavaScript数据类型知识你真的懂吗？

1

# 前言  之前面试了几个开发者，他们确实做过不少项目，能力也是不错的，但是发现js基础不扎实, 于是决定写一下这篇javascrip数据类型相关的基础文章，其实也不仅仅是因为面试了他们，之前自己在面试的时候，也曾经被虐过，面试官说过的最深刻的一句话我到现在都记得。 > 基础很重要，只有基础好才会很少出`bug`，大多数的`bug`都是基础不扎实造成的。 这里给出两道我们公司数据类型基础相关的面试题和答案，如果都能做对并且知道为什么（可以选择忽略本文章）： ```javascript //类型转换相关问题 var bar=true; console.log(bar+0); console.log(bar+"xyz"); console.log(bar+true); console.log(bar+false); console.log('1'>bar); console.log(1+'2'+false); console.log('2' + ['koala',1]); var obj1 = { a:1, b:2 } console.log('2'+obj1)； var...

koala-coding

Bumps [dns-packet](https://github.com/mafintosh/dns-packet) from 1.3.1 to 1.3.4. Commits ebdf849 1.3.4 ac57872 move all allocUnsafes to allocs for easier maintenance c64c950 1.3.3 0598ba1 fix .. in encodingLength 010aedb 1.3.2 0d0d593 backport encodingLength...

dependabot[bot]

Bumps [browserslist](https://github.com/browserslist/browserslist) from 4.8.2 to 4.16.6. Changelog Sourced from browserslist's changelog. 4.16.6 Fixed npm-shrinkwrap.json support in --update-db (by Geoff Newman). 4.16.5 Fixed unsafe RegExp (by Yeting Li). 4.16.4 Fixed unsafe...

dependabot[bot]

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.21. Commits f299b52 Bump to v4.17.21 c4847eb Improve performance of toNumber, trim and trimEnd on large input strings 3469357 Prevent command injection through _.template's variable...

dependabot[bot]

Bumps [underscore](https://github.com/jashkenas/underscore) from 1.9.1 to 1.13.1. Commits 943977e Merge branch 'umd-alias', tag 1.13.1 release 5630f88 Add version 1.13.1 to the change log 5aa5b52 Update the bundle sizes 76c8d8a Bump the...

dependabot[bot]

Bumps [ssri](https://github.com/npm/ssri) from 6.0.1 to 6.0.2. Changelog Sourced from ssri's changelog. 6.0.2 (2021-04-07) Bug Fixes backport regex change from 8.0.1 (b30dfdb), closes #19 Commits b7c8c7c chore(release): 6.0.2 b30dfdb fix: backport...

dependabot[bot]

结论：在栈内存中的数据发生数据变化的时候，系统会自动为新的变量分配一个新的之值在栈内存中，两个变量相互独立，互不影响的。 大概**新的之值**是**新的子值**吧。

ten-ltw