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Text Data Types

A string is a sequence of Unicode letters, digits, punctuation characters, and so on; it is the JavaScript datatype for representing text.

You can include string literals in your programs by enclosing them in matching pairs of single or double quotation marks.

JavaScript does not have a character datatype such as char, as C, C++, and Java do. To represent a single character, you simply use a string that has a length of 1.

A string comprises a sequence of zero or more Unicode characters enclosed within single or double quotes (' or "). Double-quote characters may be contained within strings delimited by single-quote characters, and single-quote characters may be contained within strings delimited by double quotes. String literals must be written on a single line; they may not be broken across two lines. If you need to include a newline character in a string literal, use the character sequence \n, which is documented in the next section.

Here are examples of string literals:

 
""  // The empty string: it has zero characters
'testing'
"3.14"
'name="myform"'
"Wouldn't you prefer O'Reilly's book?"
"This string\nhas two lines"
"π is the ratio of a circle's circumference to its diameter"
 

Next: Numeric Data Types