大约有 16,000 项符合查询结果（耗时：0.0908秒） [XML]
How to negate specific word in regex? [duplicate]
...me sort of low-performance task anyway, so find a solution that is easy to read, easy to understand and easy to maintain.
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Cloning an Object in Node.js
....assign({}, source);
If available (e.g. Babel), you can use the object spread operator:
let cloned = { ... source };
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MySQL check if a table exists without throwing an exception
...NCTION TABLE_EXISTS(_table_name VARCHAR(45))
RETURNS BOOLEAN
DETERMINISTIC READS SQL DATA
BEGIN
DECLARE _exists TINYINT(1) DEFAULT 0;
SELECT COUNT(*) INTO _exists
FROM information_schema.tables
WHERE table_schema = DATABASE()
AND table_name = _table_name;
RETURN _exists...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...used). Thus, to store a raw stream ~3.5M of RAM will be needed. Somebody already said it doesn't seem to be feasible, but I would say the task can be solved if the input is "good enough". Basically, the idea is to compress the input data with compression factor 0.29 or higher and do sorting in a pro...
How to convert a string into double and vice versa?
... instance of NSNumberFormatter configured for the locale from which you're reading the string.
Different locales will format numbers differently. For example, in some parts of the world, COMMA is used as a decimal separator while in others it is PERIOD — and the thousands separator (when used) ...
Remove Elements from a HashSet while Iterating [duplicate]
... @RomainF. - What do you mean by hidden temporal coupling? Do you mean thread safe? Second, neither I would recommend this but the solution does have its pro. Super easy to read and hence maintainable.
– saurabheights
Jun 1 '17 at 9:15
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Add disabled attribute to input element using Javascript
... this is the best answer: "you can use both... but it depends."
You should read this answer instead: https://stackoverflow.com/a/5876747/257493
And their release notes for that change are included here:
Neither .attr() nor .prop() should be used for getting/setting value. Use the .val() method inst...
How to do a case sensitive search in WHERE clause (I'm using SQL Server)?
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People reading this question may also find it useful to read how to change the column itself to be case sensitive which eliminates the need for using collation in the WHERE clause. See: stackoverflow.com/a/485394/908677
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Accessing elements of Python dictionary by index
...ther 'Apple' as a fruit and 'American' as a type of 'Apple' exist when you read an arbitrary file into your dict of dict data structure, you could do something like:
print [ftype['American'] for f,ftype in myDict.iteritems() if f == 'Apple' and 'American' in ftype]
or better yet so you don't unne...
How can I know which parts in the code are never used?
...ables are unused (or used but in no meaningful way, like written but never read)
the global one: functions that are never called, global objects that are never accessed
For the first kind, a good compiler can help:
-Wunused (GCC, Clang) should warn about unused variables, Clang unused analyzer h...