JS常见错误总结

1. 访问undefined或者null的属性或者设置属性

• 1. Uncaught TypeError: Cannot read property
• 2. TypeError: Cannot read property ‘length’
• 3. Uncaught TypeError: Cannot set property

2. 未定义访问

Uncaught ReferenceError: x is not defined 未定义访问

附录

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