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Is using 'var' to declare variables optional? [duplicate]
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@codemeit : javascript is full of pitfalls like this, but all in all it's a beautiful and very pleasant language. Don't hate it. Just know the pitfalls and leave them out of your code.
– Stefano Borini
Mar 21 '10 at 1:25
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Copy array by value
...5];
let newArray = oldArray.slice();
console.log({newArray});
Basically, the slice() operation clones the array and returns a reference to a new array.
Also note that:
For references, strings and numbers (and not the actual object), slice() copies object references into the new array. Both t...
HTML: Include, or exclude, optional closing tags?
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The optional ones are all ones that should be semantically clear where they end, without needing the end tag.
E.G. each <li> implies a </li> if there isn't one right before it.
The forbidden end tags all would be immediately followe...
Detect all Firefox versions in JS
How to detect Firefox in JavaScript?
I want to detect all versions of Firefox.
7 Answers
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Reference - What does this error mean in PHP?
...m. (Note: You might have multiple blocks if you had code that was automatically constructed)
Also make sure you don't have any Byte Order Marks in your code, for example when the encoding of the script is UTF-8 with BOM.
Related Questions:
Headers already sent by PHP
All PHP "Headers already sen...
Compare two folders which has many files inside contents
...ssing files, and which files differ:
diff -arq folder1 folder2
a treats all files as text, r recursively searched subdirectories, q reports 'briefly', only when files differ
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PHP mailer multiple address [duplicate]
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You need to call the AddAddress method once for every recipient. Like so:
$mail->AddAddress('person1@domain.com', 'Person One');
$mail->AddAddress('person2@domain.com', 'Person Two');
// ..
Better yet, add them as Carbon Copy rec...
Disable VS' “downloading public symbols”
...ymbols option page
Tools → Options
Go To Debugging → Symbols
Uncheck all of the listed symbol file locations
Also you may want to disable "Enable .net framework source stepping" in Tools → Options → Debugging settings.
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SVN- How to commit multiple files in a single shot
...yfile1.h
$ svn changelist my-changelist mydir/dir3/myfile3.c etc.
... (add all the files you want to commit together at your own rate)
$ svn commit -m"log msg" --changelist my-changelist
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Get table name by constraint name [duplicate]
... name of the table. If you don't have access to the DBA_CONSTRAINTS view, ALL_CONSTRAINTS or USER_CONSTRAINTS should work as well.
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