JavaScript to replace Chinese characters

Question

I am building a JavaScript array depending on the input of the user. The array is building fine but if the user enters Chinese symbols it crashes. I'm assuming that it is if the user enters a chinese " or a, or a '. I have the program replacing the English versions of this but i don't know how to replace the Chinese versions of it.

Can anyone help?

Thanks to all for their input

Answer 1

From What's the complete range for Chinese characters in Unicode? , the CJK unicode ranges are:

• 4E00-9FFF (common)
• 3400-4DFF (rare)
• F900-FAFF (compatability - Duplicates, unifiable variants, corporate characters)
• 20000-2A6DF (rare, historic)
• 2F800-2FA1F (compatability - supplement)

Because JS strings only support UCS-2, which max out at FFFF, the last two ranges probably aren't of great interest. Thus, if you're building a JS string should be able to filter out chinese characters using something like:

replace(/[\u4e00-\u9fff\u3400-\u4dff\uf900-\ufaff]/g, '')

Answer 2

You need to use unicode replacer. I think it will help you: http://answers.yahoo.com/question/index?qid=20080528045141AAJ0AIS

Answer 3

Building on broofa's answer:

If you just want to find and replace the Chinese punctuation like " or " or a . then you'll want to use unicode characters in the range of FF00-FFEF. Here is a PDF from Unicode showing them: http://unicode.org/charts/PDF/UFF00.pdf
I think you'd want at least replace these: FF01, FF02, FF07, FF0C, FF0E, FF1F, and FF61. That should be the major Chinese punctuation marks. You can use broofa's replace function.

Answer 4

.Net提供了JavaScriptSerializer和它的方法Serialize ，它创建了正确的转义JavaScript文字（尽管我个人没有用过中文字符，但没有理由它不应该工作）。

Answer 5

Not asked by the question, but adding゠-ヿ぀-ゟyou can also take out the Hiragana and Katakana from Japanese:

replace(/[\u4e00-\u9fff\u3400-\u4dff\uf900-\ufaff\u30a0-\u30ff\u3040-\u309f]/g, '')

1. https://regex101.com/r/4Aw9Q8/1
2. https://en.wikipedia.org/wiki/Katakana_(Unicode_block)
3. https://en.wikipedia.org/wiki/Hiragana_(Unicode_block)