JS learn simple basic part of the notes, miscellany

JS two features

1. interpretive language: cross-platform, execute slower than compiled languages ​​(interpreted - execution - interpreted - execution -...)

2. single-threaded

 

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Major browsers (from research kernel)

IE                                       Trident

Chrome                              webkit/blink

firefox                                 Geko

Opera soon

Safari                                  webkit

 

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Development standards

Construction phase separation behavior style

html          javascript            css

->  clear structure, easy maintenance after

 

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JS error in two categories

 1. a stupid mistake (parsing error)

-> semicolon, characters, etc.

2. Logical errors (syntax error)