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Why does C# disallow readonly local variables?
...R/CLI initonly opcode. This flag can only be applied to fields and has no meaning for a local. In fact, applying it to a local will likely produce unverifiable code.
This doesn't mean that C# couldn't do this. But it would give two different meanings to the same language construct. The version ...
What is the purpose of the single underscore “_” variable in Python?
What is the meaning of _ after for in this code?
5 Answers
5
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What is the maximum size of a web browser's cookie's key?
...main. That is, the size of all cookies should not exceed 4093 bytes.
This means you can have 1 cookie of 4093 bytes, or 2 cookies of 2045 bytes, etc.
I used to say 4095 bytes due to IE7, however now Mobile Safari comes in with 4096 bytes with a 3 byte overhead per cookie, so 4093 bytes max.
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...em in useful detail.
In general you must choose between two options:
Individual insert/update operations in a retry loop; or
Locking the table and doing batch merge
Individual row retry loop
Using individual row upserts in a retry loop is the reasonable option if you want many connections concurre...
How to remove gaps between subplots in matplotlib?
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what does the last line in the for loop mean to be ?
– Ciprian Tomoiagă
Feb 28 '18 at 22:35
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In CMake, how can I test if the compiler is Clang?
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A reliable check is to use the CMAKE_<LANG>_COMPILER_ID variables. E.g., to check the C++ compiler:
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
# using Clang
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
# using GCC
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
# using ...
Xcode 6 / Beta 4: using bridging headers with framework targets is unsupported
...l.subtitle = "Another custom cell"
Important: the "umbrella header file" means the file {ModuleName}.h.
BTW, the target name is {ModuleName}.framework.
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Update multiple rows in same query using PostgreSQL
... as c(column_b, column_a, column_c)
where c.column_b = t.column_b;
sql fiddle demo
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npm install vs. update - what's the difference?
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@BoyanKushlev I think you mean minor and patch/bugfix, not major and minor. Major is 1 for all your examples.
– jdelman
Feb 8 '18 at 19:37
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Get attribute name value of
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Give your input an ID and use the attr method:
var name = $("#id").attr("name");
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