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Possible situations where JavaScript code cannot run and execution errors occur_Basic knowledge

WBOY
WBOYOriginal
2016-05-16 17:19:311155browse

1. Code error;

2. There is no distinction between uppercase and lowercase letters;

3. Punctuation marks are not distinguished between Chinese and English;

4. Browser compatibility issues (change a browser Try);

5. There is a problem with the declaration statement of the software (just delete it)

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