40 lines
951 B
Objective-C
40 lines
951 B
Objective-C
//
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// NSArray+NBAdditions.m
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// libPhoneNumber
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//
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// Created by Dave MacLachlan on 2/7/17.
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// Copyright © 2017 ohtalk.me. All rights reserved.
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//
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#import "NSArray+NBAdditions.h"
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@implementation NSArray (NBAdditions)
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- (id)nb_safeObjectAtIndex:(NSUInteger)index class:(Class)clazz {
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if (index >= self.count) {
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return nil;
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}
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id res = [self objectAtIndex:index];
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if (![res isKindOfClass:clazz]) {
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return nil;
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}
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return res;
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}
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- (NSString *)nb_safeStringAtIndex : (NSUInteger)index {
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return [self nb_safeObjectAtIndex:index class:[NSString class]];
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}
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- (NSNumber *)nb_safeNumberAtIndex:(NSUInteger)index {
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return [self nb_safeObjectAtIndex:index class:[NSNumber class]];
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}
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- (NSArray *)nb_safeArrayAtIndex:(NSUInteger)index {
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return [self nb_safeObjectAtIndex:index class:[NSArray class]];
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}
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- (NSData *)nb_safeDataAtIndex:(NSUInteger)index {
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return [self nb_safeObjectAtIndex:index class:[NSData class]];
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}
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@end
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