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Correct way to write loops for promise.
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I don't think it guarantees the order of calling logger.log(res);
Actually, it does. That statement is executed before the resolve call.
Any suggestions?
Lots. The most important is your use of the create-promise-manually antipattern - just do only...
Is there a software-engineering methodology for functional programming? [closed]
...ere are some parallels:
Many OO "design patterns" are captured as higher-order functions. For example, the Visitor pattern is known in the functional world as a "fold" (or if you are a pointy-headed theorist, a "catamorphism"). In functional languages, data types are mostly trees or tuples, and ...
How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...ize of the key
Lookup can take less than k time if it's not there
Supports ordered traversal
No need for a hash function
Deletion is straightforward
New operations:
You can quickly look up prefixes of keys, enumerate all entries with a given prefix, etc.
Advantages of linked structure:
If th...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...oesn't make sense to have comments for a post that doesn't exist. Same for orders and order items.
In aggregation, the child object can exist irrespective of its parent. If the parent is destroyed, the child object can still exist, as it may be added to a different parent later. e.g.: the relations...
MySQL ON vs USING?
...ces one output column for each
of the listed column pairs (in the listed order), followed by any
remaining columns from T1, followed by any remaining columns from T2.
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How do I sort an NSMutableArray with custom objects in it?
... the NSSortDescriptor method is that it provides a way to define your sort order using data, rather than code, which makes it easy to e.g. set things up so users can sort an NSTableView by clicking on the header row.
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How to select the rows with maximum values in each group with dplyr? [duplicate]
...g of A and B values.
group_by( A, B) %>%
# Sort rows in descending order by "value" column.
arrange( desc(value) ) %>%
# Pick the top 1 value
slice(1) %>%
# Remember to ungroup in case you want to do further work without grouping.
ungroup()
# Answering an extension of the ...
Normal arguments vs. keyword arguments
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Using keyword arguments is the same thing as normal arguments except order doesn't matter. For example the two functions calls below are the same:
def foo(bar, baz):
pass
foo(1, 2)
foo(baz=2, bar=1)
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How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
...og.pg_namespace n ON n.oid = p.pronamespace WHERE n.nspname ~ '^(public)$' ORDER BY 1, 2, 4; Above is the query generated (from \set ECHO_HIDDEN 'on').
– Simon D
Jan 6 '18 at 9:03
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Why doesn't indexOf work on an array IE8?
...an array for more reasons for that..like getting your results in the right order across browsers. Using for..in on an array will only cause issues, it's not just a convention..it's unintended usage and an incorrect one. The order and keys are both not completely specified, they're implementation d...