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JavaScript curry: what are the practical applications?
...th all the same values but one. To steal John's example:
String.prototype.csv = String.prototype.split.partial(/,\s*/);
var results = "John, Resig, Boston".csv();
alert( (results[1] == "Resig") + " The text values were split properly" );
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Supabase 拓展：App 接入 Supabase 后端服务（Auth + PostgreSQL + Storage...
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取第一条记录。table: 表名, where: WHERE 条件, select: 字段列表, orderBy: 排序
List(table,limit)
获取前 N 条数据。table: 表名, limit: 返回数量，≤0 时不限制
Rpc(functionName,params)
调用 PostgreSQL 存储函数（RPC）。functionName: 函数名, pa...
How do I declare a global variable in VBA?
...value each time.
See example (function to save attachements of an email as CSV).
Public Numerator As Integer
Public Sub saveAttachtoDisk(itm As Outlook.MailItem)
Dim objAtt As Outlook.Attachment
Dim saveFolder As String
Dim FileName As String
saveFolder = "c:\temp\"
For Each objAtt In itm.A...
insert multiple rows via a php array into mysql
...ays use mysql's LOAD DATA:
LOAD DATA LOCAL INFILE '/full/path/to/file/foo.csv' INTO TABLE `footable` FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n'
to do bulk inserts rather than using a bunch of INSERT statements.
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How can I detect the encoding/codepage of a text file
In our application, we receive text files ( .txt , .csv , etc.) from diverse sources. When reading, these files sometimes contain garbage, because the files where created in a different/unknown codepage.
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How can I strip the whitespace from Pandas DataFrame headers?
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If you use CSV format to export from Excel and read as Pandas DataFrame, you can specify:
skipinitialspace=True
when calling pd.read_csv.
From the documentation:
skipinitialspace : bool, default False
Skip spaces after delimite...
Split delimited strings in a column and insert as new rows [duplicate]
... R. It assumes we're starting with a data.frame named "mydf". It uses read.csv to read in the second column as a separate data.frame, which we combine with the first column from your source data. Finally, you use reshape to convert the data into a long form.
temp <- data.frame(Ind = mydf$V1,
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Export specific rows from a PostgreSQL table as INSERT SQL script
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COPY (SELECT * FROM nyummy.cimory WHERE city = 'tokio') TO '/path/to/file.csv';
Import the same to another table of the same structure anywhere with:
COPY other_tbl FROM '/path/to/file.csv';
COPY writes and read files local to the server, unlike client programs like pg_dump or psql which read ...
How do I pass multiple parameters into a function in PowerShell?
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[ValidateScript({ (Get-Item $_ | select -Expand Extension) -eq ".csv" })]
[string] $Path
)
}
In this example, we are assured not only that $Path exists, but that it is a file, (as opposed to a directory) and has a .csv extension. ($_ refers to the parameter, when inside your...
Python Write bytes to file
... wb+ as mentioned in ur answer. So just execute, python with open('data.csv', 'wb') as file_obj: file_obj.write(csv_data) As per help(open) in REPL and python docs Py3.7#reading&writingfiles
– Isaac Philip
Sep 16 at 6:56
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