objective c - NSString to float value incorrect -

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i have nsstring converting float value , result logged this

2,146.952 float 2.000000

the comma seems cause float value rounded down, if use doublevalue] same.

is there way 2146.952?

try,

1) remove comma string 

nsstring * str = [str stringbyreplacingoccurencesofstring:@"," withstring:@""];

2) retrieve float value string 

float f = [str floatvalue];

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