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How can I get useful error messages in PHP?

...ple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely. 43 Answers ...
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What do I have to do to get Core Data to automatically migrate models?

...AndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error; _persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectMod...
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SLF4J: Class path contains multiple SLF4J bindings

... is the version (slf4j-log4j12) applicable for all? or should we find out the version from mvn dependency:tree? – Lei Yang Nov 11 '19 at 7:07 add a...
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What is the colon operator in Ruby?

..." # false :foo.equal? :foo # true This makes comparing two symbols really fast (since only a pointer comparison is involved, as opposed to comparing all the characters like you would in a string), plus you won't have a zillion copies of the same symbol floating about. Also, unlike strings, sy...
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AngularJS: How can I pass variables between controllers?

...Do',[]) .service('dataService', function() { // private variable var _dataObj = {}; // public API this.dataObj = _dataObj; }) .controller('One', function($scope, dataService) { $scope.data = dataService.dataObj; }) .controller('Two', function($scope, dataService) { $scope.data = dat...
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JSONDecodeError: Expecting value: line 1 column 1 (char 0)

...on struct = {} try: try: #try parsing to dict dataform = str(response_json).strip("'<>() ").replace('\'', '\"') struct = json.loads(dataform) except: print repr(resonse_json) print sys.exc_info() Note: Quotes within the data must be properly escaped ...
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Automatically capture output of last command into a variable using Bash?

... This is a really hacky solution, but it seems to mostly work some of the time. During testing, I noted it sometimes didn't work very well when getting a ^C on the command line, though I did tweak it a bit to behave a bit better. This...
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Function for Factorial in Python

...The concept used here is called recursion ( en.wikipedia.org/wiki/Recursion_(computer_science) ) - a function calling itself is perfectly fine and often useful. – schnaader Nov 7 '14 at 10:06 ...
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Mockito. Verify method arguments

... Important: Call verify()/capture() after using the mock. I was thinking it has to be "installed" before... – Daniel Alder Feb 21 '18 at 16:02 ...
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Get local IP address in node.js

... @CarterCole you need an extra call to .values() before flatten. – Guido Mar 4 '15 at 9:41 3 ...