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An efficient way to transpose a file in Bash
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Worked well with a csv of size 2 GB.
– discipulus
Nov 8 '16 at 3:10
2
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How can I access Google Sheet spreadsheets only with Javascript?
...lization API Query Language to query the data (which can return results in CSV, JSON, or HTML table format).
Forget jQuery. jQuery is only really valuable if you're traversing the DOM. Since GAS (Google Apps Scripting) doesn't use the DOM jQuery will add no value to your code. Stick to vanilla.
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CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ckage）、生成源码包（make package_source）、产生Dashboard显示数据并上传等高级功能，只要在CMakeLists.txt中简单配置，就可以完成很多复杂的功能，包括写测试用例。
如果有嵌套目录，子目录下可以有自己的CMakeLists.txt。
总之，CMak...
从Code Review 谈如何做技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有多大？有多少用户受益？”，回答不清这个问题，没有数据的支持，就不做。所以，产品经理要做很多数据挖拙和用户调研的工作，而不是拍拍脑袋，听极少数的用户抱怨就要开需求了。
2）产品经理也要管理和教育的。你要...
T-SQL split string
...x---------x
2. Converting to rows from a table which have an ID for each CSV row
SOURCE TABLE
x-----x--------------------------x
| Id | Value |
x-----x--------------------------x
| 1 | String1,String2,String3 |
| 2 | String4,String5,String6 |
x-----x---------...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...he same output is in compare_output$comparison_df which you can write to a CSV/TEXT fule using native R functions.
– Alex Joseph
Feb 13 '19 at 11:37
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How do I get the different parts of a Flask request's url?
...s in Flask:
@app.errorhandler(404)
def not_found(e):
with open("./404.csv", "a") as f:
f.write(f'{datetime.datetime.now()},{request.__dict__}\n')
return send_file('static/images/Darknet-404-Page-Concept.png', mimetype='image/png')
...
Proper use of 'yield return'
... Another example that might be interesting is when reading rather large CSV files. You want to read each element but you also want to extract your dependency away. Yield returning an IEnumerable<> will allow you to return each row and process each row individually. No need to read a 10 Mb f...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...。后面代码里的 this_length（长度是10）代表是我想分配的数据的长度。（这看上去是不是像一个C++的类？）这种玩法英文叫：Flexible Array，中文翻译叫：柔性数组。我们来用gdb看一下：(gdb) p thisline
$1 = (struct line *) 0x601010
(gdb) p *t...
那些微信公众大号是如何赚钱的？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...传递信息的层面上，而是成为了创业的又一热点。
有关数据显示，微信公众号的数量已经突破1000万，每天还在以1.5万的速度增加。尽管公众号创业成本低，但在这1000多万公众号中，能把粉丝量和阅读量做起来的是极少数，而...