In addition to those, this page documents virtual types like Selectors, enhanced pseudo-types like Events and some concepts you need to know about Functions.
A string in Java Script is an immutable object that contains none, one or many characters.
A string can be defined using single or double quotes.
You can nest single quotes inside of double quotes, and the other way around.
To mix double quotes with double quotes (or single with single), the nested ones have to be escaped with a backslash.
A string is designated html String in j Query documentation when it is used to represent one or more DOM elements, typically to be created and inserted in the document.
When passed as an argument of the Numbers in Java Script are double-precision 64-bit format IEEE 754 values. All operators common in c-based languages are available to work with numbers (+, -, *, /, %, =, +=, -=, *=, /=, ++, --).When appending numbers to string, the result is always a string.The operator is the same, so be careful: If you want to add numbers and then append them to a string, put parentheses around the numbers: An integer is a plain Number type, but whenever explicitly mentioned, indicates that a non-floating-point number is expected.A float is a plain Number type, just as Integer, but whenever explicitly mentioned, indicates that a floating-point number is expected.A boolean in Java Script can be either true or false: The drawback is that the callback is called in the context of each value and you therefore lose the context of your own object if applicable. An object, no matter if it has properties or not, never defaults to false: All objects have a prototype property.Whenever the interpreter looks for a property, it also checks in the object's prototype if the property is not found on the object itself.