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(). |