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How to check if a char is equal to an empty space?
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if (c == ' ')
char is a primitive data type, so it can be compared with ==.
Also, by using double quotes you create String constant (" "), while with single quotes it's a char constant (' ').
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Check if a String contains numbers Java
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Modified, because if only one digit is present, the solution is good enough, no need to have 1 or more digits in this case.
– Yassin Hajaj
Mar 13 '19 at 22:42
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Test if number is odd or even
What is the simplest most basic way to find out if a number/variable is odd or even in PHP?
Is it something to do with mod?
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“Comparison method violates its general contract!”
...ce A > B and B > C, then it must be the case that A > C. However, if your comparator is invoked on A and C, it would return zero, meaning A == C. This violates the contract and hence throws the exception.
It's rather nice of the library to detect this and let you know, rather than behave e...
How to disable HTML links
...We, probably, need to define a CSS class for pointer-events: none but what if we reuse the disabled attribute instead of a CSS class? Strictly speaking disabled is not supported for <a> but browsers won't complain for unknown attributes. Using the disabled attribute IE will ignore pointer-eve...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
... not exist through JDBC. Unlike MySQL, PostgreSQL does not support create if not exists syntax. What is the best way to accomplish this?
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Merge, update, and pull Git branches without using checkouts
...wer
You cannot merge a branch B into branch A without checking out A first if it would result in a non-fast-forward merge. This is because a working copy is needed to resolve any potential conflicts.
However, in the case of fast-forward merges, this is possible, because such merges can never result ...
HTML5 LocalStorage: Checking if a key exists [duplicate]
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Quoting from the specification:
The getItem(key) method must return the current value associated with the given key. If the given key does not exist in the list associated with the object then this method must return null.
You should actual...
Check if something is (not) in a list in Python
...in Python , and I have a conditional where I want to take the branch ONLY if the tuple is not in the list (if it is in the list, then I don't want to take the if branch)
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Count work days between two dates
...ET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DATEDIFF(wk, @StartDate, @EndDate) * 2)
-(CASE WHEN DATENAME(dw, @StartDate) = 'Sunday' THEN 1 ELSE 0 END)
-(CASE WHEN DATENAME(dw, @EndDate) = 'Saturday' THEN 1 ELSE 0 END)
If you...