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In where shall I use isset() and !empty()
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isset vs. !empty
FTA:
"isset() checks if a variable has a
value including (False, 0 or empty
string), but not NULL. Returns TRUE
if var exists; FALSE otherwise.
On the other hand the empty() function
checks if the...
Detect viewport orientation, if orientation is Portrait display alert message advising user of instr
...o do it, for example:
Check window.orientation value
Compare innerHeight vs. innerWidth
You can adapt one of the methods below.
Check if device is in portrait mode
function isPortrait() {
return window.innerHeight > window.innerWidth;
}
Check if device is in landscape mode
function...
How to Batch Rename Files in a macOS Terminal?
...to change a search string in all filenames in current directory:
rename -nvs searchword replaceword *
Remove the 'n' parameter to apply the changes.
More info: man rename
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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
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edited Sep 27 '15 at 11:01
Ziezi
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What is the “assert” function?
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– Johannes Schaub - litb
Oct 17 '09 at 1:27
2
length >= 0 will also turn out false if length is NaN...
Advantages and disadvantages of GUID / UUID database keys
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Troels ArvinTroels Arvin
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When to call activity context OR application context?
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27
@Norfeldt: FYI, the link in your comment links back to this answer.
– CommonsWare
Sep 5 '11 at 10:39...
Detect if the app was launched/opened from a push notification
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127
late but maybe useful
When app is not running
- (BOOL)application:(UIApplication *)applicati...
Check if SQL Connection is Open or Closed
...dn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.state(v=vs.110).aspx
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How do you specify that a class property is an integer?
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answered Apr 14 at 1:27
ShouShou
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