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What is a NullReferenceException, and how do I fix it?
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community wiki
52 revs, 36 users 27%LopDev
55
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What's the name for hyphen-separated case?
...ase
https://vuejs.org/v2/guide/components-props.html#Prop-Casing-camelCase-vs-kebab-case
However, there are still other terms that people use. Lisp has used this convention for decades as described in this Wikipedia entry, so some people have described it as lisp-case. Some other forms I've seen i...
Why is printing “B” dramatically slower than printing “#”?
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community wiki
9 revs, 7 users 35%T.J. Crowder
561
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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...
How to add a browser tab icon (favicon) for a website?
...n unfortunately doesn't allow you to use a PNG icon.
See also favicon.png vs favicon.ico - why should I use PNG instead of ICO?
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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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SQL - find records from one table which don't exist in another
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An advantage of this approach (vs. LEFT OUTER JOIN by WOPR) is that it avoids returning multiple rows per row of Call, if there are multiple matching rows in Phone_book. That is, if there is a 1:N relationship between your two tables.
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How to do URL decoding in Java?
...apped in a try/catch block.. read more about checked exceptions (this one) vs unchecked stackoverflow.com/questions/6115896/…
– TheNurb
Jul 26 '16 at 20:52
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How do I drag and drop files into an application?
...ipedia.org/wiki/File:ProhibitionSign2.svg . Then I saw this answer and ran VS as a non-admin and presto it works! Thanks a million.
– Derek W
Jun 3 '13 at 18:09
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