javascript script to parse voice and executed by the browser
1. Weak Strong points type, weakly typed variables defined in JavaScript statement is not required when the data type, the data type is determined by the value of the variable, in strongly typed java definitions of the variables when it has the data to determine the type.
2. interpreted, line by line.
3. interpreted language, corresponding to a compiled language. All will be parsed into binary.
There are four methods used javascript and css similar inline styles, internal style sheet, an external style sheet, the style introduced outside
the row handles writing 1.
2. The internal stylesheet <script> js Code </ Script>
3. Waibuyangshibiao < script src = "file to the end of the path js .js"> </ Script>
4. external introducing foreign import module style
writing time css is on the inside of the head
writing JavaScript can be placed anywhere
preferably on the bottom of the page
except in exceptional circumstances