ios - ReactiveCocoa nested map -

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[[[[[self.textfield.rac_textsignal throttle:0.5] flattenmap:^racstream *(id value) {     //call api     return [api signal]; }] flattenmap:^racstream *(nsarray *result) {     result = [result.rac_sequence take:150].array;     //result json array     return result; }] map:^id (nsarray *result) {     return [result.rac_sequence map:^id (json *r) {         //handle json item         return item;     }].array; }] subscribenext:^(nsarray *result) {      //reload ui } error:^(nserror *error) { } completed:^{ }];

how avoid nested map in signal sequence? better way handle this?


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