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    <p>Try following lines, and make sure <code>properyName</code> is case sensitive. and you have placed <code>,</code> in predicate format, thats why its not working. just replace your code with following.</p> <p><strong>Objective C</strong></p> <pre><code>NSPredicate *bPredicate = [NSPredicate predicateWithFormat:@"SELF.name contains[cd] %@",self.searchText.text]; self.filteredArray = [self.hotelArray filteredArrayUsingPredicate:bPredicate]; NSLog(@"HERE %@",self.filteredArray); </code></pre> <p><strong>Swift</strong></p> <pre><code>var bPredicate: NSPredicate = NSPredicate(format: "SELF.name contains[cd] %@", self.searchText.text) self.filteredArray = self.hotelArray.filteredArrayUsingPredicate(bPredicate) NSLog("HERE %@", self.filteredArray) </code></pre> <p><strong>Using swift <code>filter</code></strong></p> <pre><code>var searchText = "Galaxy" let filteredArray = hotelArray.filter { $0["name"] == searchText } print("** Result ** \n\(filteredArray)") </code></pre> <p><strong>Swift 3.0</strong></p> <pre><code>let arrEmp = [["name": "James", "age" : 27, "city" : "New york"], ["name": "Johnson", "age" : 24, "city" : "London"], ["name": "Alex", "age" : 28, "city" : "Newark"], ["name": "Mark", "age" : 25, "city" : "Paris"], ["name": "Steve", "age" : 25, "city" : "Silicon Valley"], ["name": "Lary", "age" : 28, "city" : "New york"]] // *** Filter by Name exact match *** var filterByName = arrEmp.filter { $0["name"] == "Mark" } print("filterByName \(filterByName)") // *** Filter by Age *** var filterByAge = arrEmp.filter { $0["age"] as! Int &gt; 25 } print("filterByAge \(filterByAge)") </code></pre> <p><strong>Swift 4.0</strong></p> <pre><code>var filterByName = arrEmp.filter do { $0["name"] == "Mark" } print("filterByName filterByName)") var filterByAge = arrEmp.filter do { $0["age"] as! Int &gt; 25 } print("filterByAge filterByAge)") </code></pre>
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    2. CO[NSString "sometext%i",4] IOS makes it number not string that was the error .
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