JavaScript common global properties and methods record accumulation _ basics

Recently, in the learning Javascript,java as a domain chain contains global, record common global properties and methods, when it is the accumulation of knowledge, not listed all, if you need to see all the relevant JS API documentation.

Common Global Properties:

Global Properties	function
Infinity	A value that represents positive infinity
NaN	Non-numeric values
Undefined	Undefined value

Common Global Methods:
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Global methods    &NBSP	effect               &NBSP ;
encodeuri ()	Returns a copy of the parameter, some of which are in a hexadecimal escape sequence Replace, it is recommended that you use encodeURIComponent ()
encodeuricomponent ()	to return a copy of the parameter, some of which are replaced by a hexadecimal escape sequence
decodeURI ()	decodes the string of encodeURI ()
decodeuricomponent ()	string decoding of encodeURIComponent ()
Escape ()	replace some character string encoding with escape sequence
Unescape ()	to decode a string that is encoded with escape ()
eval ()	compute a JavaScript code string, returning the result
isfinite ()	verifies that a value is an infinity number
isNaN ()	Verify that a value is a non-numeric value /td>
parseint ()	parse an integer from string
parsefloat ()	parse a decimal from string /td>