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Check whether an input string contains a number in javascript
My end goal is to validate an input field. The input may be either alphabetic or numeric.
12 Answers
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AngularJS ng-repeat handle empty list case
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@MKSafi, it is creating a new variable on the scope called filteredItems and setting its value to (items | filter:keyword) - in other words, the array returned by the filter
– AlexFoxGill
Jan 14 '14 at 16:26
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How to return result of a SELECT inside a function in PostgreSQL?
... -- potential ambiguity
END
$func$ LANGUAGE plpgsql;
Call:
SELECT * FROM word_frequency(123);
Explanation:
It is much more practical to explicitly define the return type than simply declaring it as record. This way you don't have to provide a column definition list with ev...
Why does Haskell's “do nothing” function, id, consume tons of memory?
Haskell has an identity function which returns the input unchanged. The definition is simple:
1 Answer
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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...g to see what will happen with Scala on .Net, since interoperability alone calls for Scala to at least recognize user-defined "primitives".
Also extending Any is AnyRef, which is equivalent to java.lang.Object (on the JVM at any rate).
Up to Scala 2.9.x, a user could not extend Any or AnyVal, nor ...
Comparing mongoose _id and strings
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Mongoose uses the mongodb-native driver, which uses the custom ObjectID type. You can compare ObjectIDs with the .equals() method. With your example, results.userId.equals(AnotherMongoDocument._id). The ObjectID type also has a toString() method, if you wish to store a stringified version of t...
Linq to Entities join vs groupjoin
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Behaviour
Suppose you have two lists:
Id Value
1 A
2 B
3 C
Id ChildValue
1 a1
1 a2
1 a3
2 b1
2 b2
When you Join the two lists on the Id field the result will be:
Value ChildValue
A a1
A a2
A a3
B b1
B b2
When you GroupJoin...
Sort objects in an array alphabetically on one property of the array
... least remember the linting thing :)
– Michael Tranchida
May 18 '18 at 22:40
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mysql :: insert into table, data from another table?
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INSERT INTO action_2_members (campaign_id, mobile, vote, vote_date)
SELECT campaign_id, from_number, received_msg, date_received
FROM `received_txts`
WHERE `campaign_id` = '8'
share
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When is an interface with a default method initialized?
...nough to trigger the initialization. The default method doesn't have to be called or overridden or even mentioned, nor does the presence of an abstract method trigger initialization.
My speculation is that the HotSpot implementation wanted to avoid adding class/interface initialization checking int...