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Hashing a string with Sha256
...What if you want to do a case insensitive comparison?” You also need to convert bytes in UTF-16 if you want to do this kind of stuff. The fact that it's fixed length does not help one bit.
– Arturo Torres Sánchez
Dec 23 '14 at 15:13
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Convert UNIX epoch to Date object
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I have timestamps like 1415560016876. epochconverter.com converts this to a date with no problem. Your code above gives me stuff like "46832-11-09 12:47:33 EDT"...
– Hack-R
Nov 17 '14 at 19:43
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How to download all files (but not HTML) from a website using wget?
...es:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted --no-parent http://site/path/
This will mirror the site, but the files without jpg or pdf extension will be automatically removed.
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How to create a unique index on a NULL column?
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Improvement: ISNULL(X, CONVERT(VARCHAR(10),pk))
– Faiz
Mar 6 '14 at 11:04
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why windows 7 task scheduler task fails with error 2147942667
...Save and close all open dialogs
To get the relevant error message:
1) Convert 2147942667 to hex: 8007010B
2) Take last 4 digits (010B) and convert to decimal: 267
3) Run: net helpmsg 267
4) Result: "The directory name is invalid."
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Convert InputStream to BufferedReader
... name to the StreamReader constructor. Since a stream just provides bytes, converting these to text means the encoding must be known. If you don't specify it, the system default is assumed.
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Which timestamp type should I choose in a PostgreSQL database?
...reference (most likely an offset from UTC, such as -0700).
In application, convert the time to UTC and stored using a TIMESTAMP WITH TIME ZONE column.
Return time requests local to a user's time zone (i.e. convert from UTC to America/Los_Angeles).
Set your database's timezone to UTC.
This option d...
Convert string to variable name in JavaScript
I’ve looked for solutions, but couldn’t find any that work.
11 Answers
11
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How to convert list of key-value tuples into dictionary?
...context-dependent; do you need O(1) lookup time for keys? Also you cannot "convert lists to dictionaries" arbitrarily; it entirely depends on the semantics. e.g. [(1,2), (1,3)] -> {1:3} would clobber your keys and lose info! A dict is a one-to-* relation with O(1) insert/delete time. List is a li...
Send POST request using NSURLSession
...ts one easy solution would be to create a String instead of Dictionary and convert it to Data. You have the code samples below written on Objective-C and Swift 3.0.
Objective-C
// Create the URLSession on the default configuration
NSURLSessionConfiguration *defaultSessionConfiguration = [NSURLSess...