JavaScript Basic Learning log (1)

Attribute operation in JS:

Attribute manipulation syntax

Property read operation: Get

Example: getting the input value

Instance: Get Select Value

String connection

Property Write operations: Modify, add

Example: Modifying value values

Example: Add src address to a picture

InnerHTML

Example: Analog SMS Sending

After-school experience:

Attribute manipulation considerations

Special characters that are not allowed in JS

Adding Class:classname to an element

keywords, reserved words

Read problems with relative paths

Type value modification of form elements

Floating (float) compatibility issues

IE (stylefloat), non ie (cssfloat)

In the property operation: []

If judgment

If the basic form of judgment

Picture Switch Instance

Practice Links: Https://files.cnblogs.com/files/huangfeihong/exercise1.picturechange.rar

　　

JavaScript Basic Learning log (1)