JavaScript Global
JavaScript global properties and methods can be used to create Javascript objects.
JavaScript global properties
Property | Describe |
---|---|
Infinity | A value that represents a positive infinity. |
NaN | Indicates whether a value is a numeric value. |
undefined | Indicates an undefined value. |
JavaScript global function
Function | Describe |
---|---|
decodeURI() | Decode an encoded URI. |
decodeURIComponent() | Decode an encoded URI component. |
encodeURI() | Encode the string as a URI. |
encodeURIComponent() | Encode the string as a URI component. |
escape() | Encode the string. |
eval() | Calculate the JavaScript string and execute it as script code. |
isFinite() | Check if a value is a poor number. |
isNaN() | Check if a value is a number. |
Number() | Convert the value of the object to a number. |
parseFloat() | Resolve a string and return a float. |
parseInt() | Resolve a string and return an integer. |
String() | Convert the value of the object to a string. |
unescape() | Decode strings encoded by escape(). |