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uppercase first character in a variable with bash
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15 Answers
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How do you clear a slice in Go?
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It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
sli...
Detail change after Git pull
...ing to master. You can refer to the previous position of master by master@{1} (or even master@{10.minutes.ago}; see the specifying revisions section of the git-rev-parse man page), so that you can do things like
See all of the changes: git diff master@{1} master
See the changes to a given file: gi...
List all indexes on ElasticSearch server?
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edited Aug 14 '19 at 8:36
saeedeh
811010 bronze badges
answered Jul 2 '13 at 15:20
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Is there a NumPy function to return the first index of something in an array?
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Specify custom Date format for colClasses argument in read.table/read.csv
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You can write your own function that accepts a string and converts it to a Date using the form...
Is it possible for a unit test to assert that a method calls sys.exit()
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Yes. sys.exit raises SystemExit, so you can check it with assertRaises:
with self.assertRaise...
Check if value exists in Postgres array
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Simpler with the ANY construct:
SELECT value_variable = ANY ('{1,2,3}'::int[])
The right operand of ANY (between parentheses) can either be a set (result of a subquery, for instance) or an array. There are several ways to use it:
SQLAlchemy: how to filter on PgArray column types?
IN ...
How to get a key in a JavaScript object by its value?
...ct).find(key => object[key] === value);
}
const map = {"first" : "1", "second" : "2"};
console.log(getKeyByValue(map,"2"));
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