ios - Get first character, symbol, number, or emoji at the start of NSString -


this question has answer here:

i first character, symbol, number, or emoji of nsstring.

since emojis encoded unicode surrogate pairs, getting first character using like

str = [str substringtoindex:1];

will not work.

following answer found here: simplest way extract first unicode codepoint of nsstring (outside bmp)?

nsrange r = [mystring rangeofcomposedcharactersequenceatindex:0]; nsstring *firstcharacter = [mystring substringwithrange:r];

firstcharacter gives first character of nsstring no matter how it's encoded.


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