JavaScript complex nested environment output single and double quotes _javascript tips

Source: Internet
Author: User
<a href= "Javascript:alert (' There are 2 single quotes, one double quote" \ ':) '); "> Nested </a>

The single quote ' ASCII code is 39 double quotes ' ASCII is 34, so we can use the form of & #xxx to replace the specific symbol. Although it becomes a & #xxx, it is still very careful in nested environments. The quotes in the code here are single quotes, and the strings in alert should escape the single quotes. So there's the form of \ '. Instead, it is necessary to escape the

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