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Prototypical inheritance - writing up [duplicate]
...bob and ben
The member walk is part of Person.prototype and is shared for all instances bob and ben are instances of Person so they share the walk member (bob.walk===ben.walk).
bob.walk();ben.walk();
Because walk() could not be found on bob directly JavaScript will look for it in the Person.prot...
PHP 5.4 Call-time pass-by-reference - Easy fix available?
Is there any way to easily fix this issue or do I really need to rewrite all the legacy code?
3 Answers
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What does cmd /C mean? [closed]
...iable expansion using ! as the
delimiter. For example, /V:ON would allow !var! to expand the
variable var at execution time. The var syntax expands variables
at input time, which is quite a different thing when inside of a FOR
loop.
/V:OFF Disable delayed environmen...
Initialise a list to a specific length in Python [duplicate]
...dicts, do not use [{}]*10 -- that would give you a list with the same initially-empty dict ten times, not ten distinct ones. Rather, use [{} for i in range(10)] or similar constructs, to construct ten separate dicts to make up your list.
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What does `unsigned` in MySQL mean and when to use it?
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MySQL says:
All integer types can have an optional
(nonstandard) attribute UNSIGNED.
Unsigned type can be used to permit
only nonnegative numbers in a column
or when you need a larger upper
numeric range for the column. For
e...
How to send HTML-formatted email? [duplicate]
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Setting isBodyHtml to true allows you to use HTML tags in the message body:
msg = new MailMessage("xxxx@gmail.com",
"yyyy@gmail.com", "Message from PSSP System",
"This email sent by the PSSP system<br />" +
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How to download Xcode DMG or XIP file?
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For Xcode 9, I am told that I am not allowed to view that page. What shall I do?
– Mr. Xcoder
Jun 6 '17 at 18:45
9
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Tooltip on image
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Using javascript, you can set tooltips for all the images on the page.
<!DOCTYPE html>
<html>
<body>
<img src="http://sushmareddy.byethost7.com/dist/img/buffet.png" alt="Food">
<img src="http://sushmareddy.byethost7.com/dist/...
SQL WITH clause example [duplicate]
...roduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an...
How to go back to previous opened file in Vim? [duplicate]
...ve gone deep down the hierarchy of files by typing multiple gf, vim stores all the files in numbered buffers
Then following command will take you to the nth file in a buffer. (n = 1,2,3,..)
:e#n
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