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How to find first element of array matching a boolean condition in JavaScript?
...for arrays; this stops enumerating the array once it finds the first match and returns the value.
const result = someArray.find(isNotNullNorUndefined);
Old answer:
I have to post an answer to stop these filter suggestions :-)
since there are so many functional-style array methods in ECMAScript, p...
Python `if x is not None` or `if not x is None`?
...he if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convention)?*
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What does 'wb' mean in this code, using Python?
...
File mode, write and binary. Since you are writing a .jpg file, it looks fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there ar...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...AR as the primary key for reference lists (think US States, Country Codes) and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables.
...
Does a javascript if statement with multiple conditions test all of them?
...IT: Though, you shouldn't worry about performance until you've benchmarked and determined that it's a problem. Premature micro-optimization is the bane of maintainability.
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How to store arrays in MySQL?
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The proper way to do this is to use multiple tables and JOIN them in your queries.
For example:
CREATE TABLE person (
`id` INT NOT NULL PRIMARY KEY,
`name` VARCHAR(50)
);
CREATE TABLE fruits (
`fruit_name` VARCHAR(20) NOT NULL PRIMARY KEY,
`color` VARCHAR(20),
`price` INT
)...
Test if characters are in a string
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@GregSnow -- Tried system.time(a <- grepl("abc", vec)) and system.time(a <- grepl("abc", vec, fixed=TRUE)), and fixed=TRUE is still, if anything slightly slower. The difference isn't appreciable with these short strings, but fixed=TRUE still doesn't seem to be faster. Thanks ...
When to use an interface instead of an abstract class and vice versa?
...ric OOP question. I wanted to do a generic comparison between an interface and an abstract class on the basis of their usage.
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FixedThreadPool vs CachedThreadPool: the lesser of two evils
...similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ".
...
'adb' is not recognized as an internal or external command, operable program or batch file
...ariables. You can find adb in "ADT Bundle/sdk/platform-tools" Set the path and restart the cmd n then try again.
Or
You can also goto the dir where adb.exe is located and do the same thing if you don't wanna set the PATH.
If you wanna see all the paths, just do
echo %PATH%
...