Strip of substring from a string in swift [closed] - ios

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I have a string with brackets in it from which have to remove/strip the substring.
For ex:
"8383838383(1234)" //string value
"8383838383" // desired result.
Thanks in advance

"8383838383(1234)".substringToIndex(string.rangeOfString("(")!.startIndex)
// "8383838383"

Building on #Tim's suggestion -
let strFull = "8383838383(1234)"
var str = strFull.substringToIndex(strFull.rangeOfString("(")!.startIndex)

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tfidf = TfidfVectorizer(lowercase=False, )
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https://scikit-learn.org/stable/modules/generated/sklearn.feature_extraction.text.TfidfVectorizer.html
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The inverse document frequency (IDF) vector; only defined if use_idf is True.

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How to write something
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I try to write to out of the cells label but it not work.
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