What is \n mean in html?

I am trying to understand somethings in a function to do with \n. Here is what I see/have and just wanting to know what the \n are for.

$s = "<table cellpadding=\"1\" cellspacing=\"1\" border=\"0\">\n<tr>\n";

foreach($lang['abrvdays'] as $day) {
    $s .= "\t<td class=\"column_header\">&nbsp;$day</td>\n";
}

$s .= "</tr>\n\n";
return $s;

I do know that it is to get the names of the days on a calendar. I have a calendar I built which I use

 {
 <tr>
   <th>
      This is where my names of days go.
   </th>
 </tr>
}

And would like to use the code above. But when I do, it has 7 <td> cells across the top and is the same height as all other <td> cells. I tried changing the <td> to <th> still doesn't work.

>>> the basic difference between them is..... \n is use in c++ whereas <br/> is use in html ......however they both do they same work .....

\n is a special character, br is html tag

/n is used inside a String and it means end of line FYI: https://en.wikipedia.org/wiki/Newline <br> This will show up as a new line when HTML is rendered in a browser. FYI: https://www.w3schools.com/tags/tag_br.asp

\n works in PHP, Js and C++ <br> in html

To elaborate on the above in how they are applied specifically in Javascript, \n will be useful in your code which just utilizes JavaScript and the console. Whereas <br/> will be useful when you are calling upon the DOM to write Javascript mixed with HTML.

0 points

over 8 years

Im not understanding why \n is in the code (seems redundant), let alone the fact what it even does…? Can someone help…

multi_d_array = [[0,0,0,0],[0,0,0,0],[0,0,0,0],[0,0,0,0]]

multi_d_array.each { |x| puts "#{x}\n" }

Answer 53335afd52f863787c000206

Although experimentation could have revealed this answer, the underlying function of \n is a very good question to have asked.

What you are seeing is common in all programming languages and is called an Escape Sequence. When you are printing strings you may oftentimes want to manipulate the way the text displays, or more crucially, include characters that would normally break the code (including quotation marks within the string for instance).

To accomplish these tasks with little hassle you begin with a backslash ( \ ) within the string, which in essence tells the compiler “Stop! The upcoming text is special.”

In the example provided we use the newline escape sequence (\n) which, as you probably have long discovered, creates a new line for the forthcoming text. Here is a list of other escape sequences you can use:

 \" – double quote
 \\ – single backslash
 \a – bell/alert
 \b – backspace
 \r – carriage return
 \n – newline
 \s – space
 \t – tab

So if I wanted to print the string This is a “string” with troublesome\reactive characters! I could use the code puts "This is a \"string\" with troublesome\\reactive characters!"

points

over 8 years

Answer 52f4f16c80ff33af9a001b49

Be curious. Experiment. Try removing the \n or adding another one. I’m sure you can figure out what it is in less than a minute. Less than it took you to post this question, anyway.

points

over 8 years

Answer 54385c5952f8638484000120

i understand the concept, now (thanks Matthew), but removing the n (and in fact, entering in a number of these codes after /)doesnt make any difference in how it displays. could it be my browser?

points

almost 8 years

Answer 5603d05d3e0ec85ed3000544

as it seems /n adds a new line as Mathew explained above, for instance you can replace #puts with #print by adding \n after the thing you want to #print

points

about 7 years

Does \n work in JavaScript?

What is the basic difference between \n and \t?

What does \t mean in HTML?

What is PHP \\ n?