python check if all values in a list are the same?
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["'''", 'check if element are same using list.count()', 'If occurence count of first element in list is equal to length of list.', 'Then it means all elements in List are equal.', "'''", 'result = False;', 'if len(listOfStrings) > 0 :', 'result = listOfStrings.']
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13 Answers. There is an ordered set (possible new link) recipe for this which is referred to from the Python 2 Documentation. ... The interface is almost exactly the same as a normal set, except that initialisation should be done with a list.
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Compare Arrays in JavaScript. Arrays are objects in JavaScript, so the triple equals operator === only returns true if the arrays are the same reference.
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Using set() property of Python, we can easily check for the unique values. Insert the values of the list in a set. Set only stores a value once even if it is inserted more then once. After inserting all the values in the set by list_set=set(list1), convert this set to a list to print it.
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And while most of the data types we've worked with in introductory Python are immutable (including integers, floats, strings, Booleans, and tuples), lists and dictionaries are mutable. That means a global list or dictionary can be changed even when it's used inside of a function, just like we saw in the examples above.
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['Accessing Values in Tuples. To access values in tuple, use the square brackets for slicing along with the index or indices to obtain value available at that index. ... ', 'Updating Tuples. Tuples are immutable which means you cannot update or change the values of tuple elements. ... ', 'Delete Tuple Elements. ... ', 'No Enclosing Delimiters.']
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['Step 1 - Read the search element from the user.', 'Step 2 - Find the middle element in the sorted list.', 'Step 3 - Compare the search element with the middle element in the sorted list.', 'Step 4 - If both are matched, then display "Given element is found!!!" and terminate the function.']
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6 Answers. Yes, the order of elements in a python list is persistent. In short, yes, the order is preserved. ... A list is a collection of elements that can contain duplicate elements and has a defined order that generally does not change unless explicitly made to do so.
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Comparing objects is easy, use === or Object.is(). This function returns true if they have the same reference and false if they do not.
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['<script>', 'var fruits = ["Apple", "Banana", "Mango", "Orange", "Papaya"];', '// Check if a value exists in the fruits array.', 'if(fruits. indexOf("Mango") !== -1){', 'alert("Value exists!")', '} else{', 'alert("Value does not exists!")', '}']
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['Select the entire data set.', 'Click the Home tab.', "In the Styles group, click on the 'Conditional Formatting' option.", 'Hover the cursor on the Highlight Cell Rules option.', 'Click on Duplicate Values.', "In the Duplicate Values dialog box, make sure 'Unique' is selected."]
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['Click the Advanced Filter button on the Data tab of the Ribbon.', 'Select the “Copy to another location” radio button.', 'Select the “List range”. The range/column that contains the duplicate values.', 'Select the “Copy to” range. ... ', 'Click the “Unique records only” checkbox.', 'Click the OK button.']
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Lists are equal if elements at the same index are equal. Ordering is taken into account then. If you want to just check if they are identical or not, a == b should give you true / false with ordering taken into account. Here, c will contain an array with 3 elements all of which are true (for your example).
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The equals() method of the String class is not same as the equals() method of the Object class. It is overridden, this method accepts a String value and compares it with the current object and returns true only if the character sequences in the both String objects are exactly same.
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['On the first iteration of i=0, the inner loop executes 0 times.', 'On the first iteration of i=1, the inner loop executes 1 times.', '.', '.', 'On the first iteration of i=n-1, the inner loop executes n-1 times.']
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['has_key. The has_key method returns true if a given key is available in the dictionary; otherwise, it returns false. Syntax. See the syntax of the has_key method below: ... ', 'if - in statement. This approach uses the if - in statement to check whether or not a given key exists in the dictionary. Syntax.']
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No you cannot. You can generate a new variable in each iteration with the same name. It is possible because the scope of the variable would be new for every single iteration. That will serve the same purpose for what you want.