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‎functions/studio/studio-functions.js

Lines changed: 113 additions & 113 deletions
Original file line numberDiff line numberDiff line change
@@ -1,113 +1,113 @@
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//We want to COMPLETELY reverse an array by flipping the order of the entries AND flipping the order of characters in each element.
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// Part One: Reverse Characters
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// 1. Define the function as reverseCharacters. Give it one parameter, which will be the string to reverse.
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// 2. Within the function, split the string into an array, then reverse the array.
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// 3. Use join to create the reversed string and return that string from the function.
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// 4. Below the function, define and initialize a variable to hold a string.
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// 5. Use console.log(reverseCharacters(myVariableName)); to call the function and verify that it correctly reverses the characters in the string.
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// 6. Optional: Use method chaining to reduce the lines of code within the function.
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function reverseCharacters(str) {
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if ( typeof(str) ===typeof("f")){
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let lettersArray = str.split('');
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let reversedLettersArray = lettersArray.reverse();
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return reversedLettersArray.join('');
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}
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if (typeof(str) === typeof(11)){
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let lettersArray = str.toString();
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let splitThis =lettersArray.split('');
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let reversedLettersArray = splitThis.reverse();
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reversedLettersArray=reversedLettersArray.join('');
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reversedLettersArray=Number(reversedLettersArray);
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return reversedLettersArray;
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}
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}
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console.log(reverseCharacters("taco"));
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// Part Two: Reverse Digits
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// 1. Add an if statement to reverseCharacters to check the typeof the parameter.
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// 2. If typeof is ‘string’, return the reversed string as before.
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// 3. If typeof is ’number’, convert the parameter to a string, reverse the characters, then convert it back into a number.
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// 4. Return the reversed number.
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// 5. Be sure to print the result returned by the function to verify that your code works for both strings and numbers. Do this before moving on to the next exercise.
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// Part Three: Complete Reversal
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// 1. Define and initialize an empty array.
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// 2. Loop through the old array.
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// 3. For each element in the old array, call reverseCharacters to flip the characters or digits.
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// 4. Add the reversed string (or number) to the array defined in part ‘a’.
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// 5. Return the final, reversed array.
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// 6. Be sure to print the results from each test case in order to verify your code.
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let empty = [];
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let arrayTest1 = ['apple', 'potato', 'Capitalized Words'];
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let arrayTest2 = [123, 8897, 42, 1168, 8675309];
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let arrayTest3 = ['hello', 'world', 123, 'orange'];
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function completeReversal(array){
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let reversedArray=[];
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for (let i=0; i<array.length;i++){
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let reversedChar = reverseCharacters(array[i]);
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reversedArray.push(reversedChar)
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//
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}
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return reversedArray;
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}
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// console.log(completeReversal(arrayTest1));
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// console.log(completeReversal(arrayTest2));
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// console.log(completeReversal(arrayTest3));
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// Bonus Missions
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// 1. Have a clear, descriptive name like funPhrase.
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// 2. Retrieve only the last character from strings with lengths of 3 or less.
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// 3. Retrieve only the first 3 characters from strings with lengths larger than 3.
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// 4. Use a template literal to return the phrase We put the '___' in '___'. Fill the first blank with the modified string, and fill the second blank with the original string.
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// Test Function
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// 1. Outside of the function, define the variable str and initialize it with a string (e.g. 'Functions rock!').
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// 2. Call your function and print the returned phrase.
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// Area of rectangle equal to length x width
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// 1. Define a function with the required parameters to calculate the area of a rectangle.
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// 2. The function should return the area, NOT print it.
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// 3. Call your area function by passing in two arguments - the length and width.
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// 4. If only one argument is passed to the function, then the shape is a square. Modify your code to deal with this case.
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// 5. Use a template literal to print, “The area is ____ cm^2.”
1+
//We want to COMPLETELY reverse an array by flipping the order of the entries AND flipping the order of characters in each element.
2+
3+
// Part One: Reverse Characters
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// 1. Define the function as reverseCharacters. Give it one parameter, which will be the string to reverse.
6+
// 2. Within the function, split the string into an array, then reverse the array.
7+
// 3. Use join to create the reversed string and return that string from the function.
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// 4. Below the function, define and initialize a variable to hold a string.
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// 5. Use console.log(reverseCharacters(myVariableName)); to call the function and verify that it correctly reverses the characters in the string.
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// 6. Optional: Use method chaining to reduce the lines of code within the function.
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function reverseCharacters(str) {
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if ( typeof(str) ===typeof("f")){
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let lettersArray = str.split('');
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let reversedLettersArray = lettersArray.reverse();
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return reversedLettersArray.join('');
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}
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if (typeof(str) === typeof(11)){
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let lettersArray = str.toString();
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let splitThis =lettersArray.split('');
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let reversedLettersArray = splitThis.reverse();
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reversedLettersArray=reversedLettersArray.join('');
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reversedLettersArray=Number(reversedLettersArray);
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return reversedLettersArray;
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}
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}
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console.log(reverseCharacters("taco"));
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// Part Two: Reverse Digits
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// 1. Add an if statement to reverseCharacters to check the typeof the parameter.
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// 2. If typeof is ‘string’, return the reversed string as before.
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// 3. If typeof is ’number’, convert the parameter to a string, reverse the characters, then convert it back into a number.
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// 4. Return the reversed number.
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// 5. Be sure to print the result returned by the function to verify that your code works for both strings and numbers. Do this before moving on to the next exercise.
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// Part Three: Complete Reversal
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// 1. Define and initialize an empty array.
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// 2. Loop through the old array.
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// 3. For each element in the old array, call reverseCharacters to flip the characters or digits.
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// 4. Add the reversed string (or number) to the array defined in part ‘a’.
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// 5. Return the final, reversed array.
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// 6. Be sure to print the results from each test case in order to verify your code.
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let empty = [];
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let arrayTest1 = ['apple', 'potato', 'Capitalized Words'];
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let arrayTest2 = [123, 8897, 42, 1168, 8675309];
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let arrayTest3 = ['hello', 'world', 123, 'orange'];
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function completeReversal(array){
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let reversedArray=[];
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for (let i=0; i<array.length;i++){
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let reversedChar = reverseCharacters(array[i]);
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reversedArray.push(reversedChar)
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//
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}
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return reversedArray;
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}
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// console.log(completeReversal(arrayTest1));
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// console.log(completeReversal(arrayTest2));
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// console.log(completeReversal(arrayTest3));
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// Bonus Missions
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// 1. Have a clear, descriptive name like funPhrase.
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// 2. Retrieve only the last character from strings with lengths of 3 or less.
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// 3. Retrieve only the first 3 characters from strings with lengths larger than 3.
93+
// 4. Use a template literal to return the phrase We put the '___' in '___'. Fill the first blank with the modified string, and fill the second blank with the original string.
94+
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// Test Function
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// 1. Outside of the function, define the variable str and initialize it with a string (e.g. 'Functions rock!').
105+
// 2. Call your function and print the returned phrase.
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107+
// Area of rectangle equal to length x width
108+
109+
// 1. Define a function with the required parameters to calculate the area of a rectangle.
110+
// 2. The function should return the area, NOT print it.
111+
// 3. Call your area function by passing in two arguments - the length and width.
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// 4. If only one argument is passed to the function, then the shape is a square. Modify your code to deal with this case.
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// 5. Use a template literal to print, “The area is ____ cm^2.”

‎functions/try-it/isPalindrome.js

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
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function reverse(str) {
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return str.split('').reverse().join('');
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}
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function isPalindrome(str) {
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return reverse(str) === str;
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}
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function reverse(str) {
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return str.split('').reverse().join('');
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}
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function isPalindrome(str) {
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return reverse(str) === str;
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}

‎functions/try-it/printMessage.js

Lines changed: 10 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,10 @@
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let message = "Hello, World!";
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function printMessage() {
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console.log(message);
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}
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printMessage();
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message = "Goodbye";
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printMessage();
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let message = "Hello, World!";
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function printMessage() {
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console.log(message);
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}
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printMessage();
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message = "Goodbye";
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printMessage();
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‎functions/try-it/reverse.js

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
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function reverse(str) {
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let lettersArray = str.split('');
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let reversedLettersArray = lettersArray.reverse();
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return reversedLettersArray.join('');
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}
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function reverse(str) {
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let lettersArray = str.split('');
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let reversedLettersArray = lettersArray.reverse();
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return reversedLettersArray.join('');
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}

‎functions/try-it/sayHello.js

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,3 @@
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function sayHello() {
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console.log("Hello, World!");
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}
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function sayHello() {
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console.log("Hello, World!");
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}

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