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7bb4d43957
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7bb4d43957 | ||
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d70d20ec5a |
@@ -95,9 +95,3 @@ arr.reduce(callback[, initialValue]) // Apply a function against
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arr.reduceRight(callback[, initialValue]) // Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value.
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arr.reduceRight(callback[, initialValue]) // Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value.
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arr.some(callback[, initialValue]) // Returns true if at least one element in this array satisfies the provided testing function.
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arr.some(callback[, initialValue]) // Returns true if at least one element in this array satisfies the provided testing function.
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arr.values() // Returns a new Array Iterator object that contains the values for each index in the array.
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arr.values() // Returns a new Array Iterator object that contains the values for each index in the array.
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// String methods
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String.charAt(index) // Returns the character at the specified index in a string.
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String.indexOf(character) // Returns the index of the first occurrence of a specified value in a string.
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String.substring(starting_index, ending_index) // Returns a new string that is a subset of the original string.
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String.substring(starting_index) // Returns a substring from starting index to last index of string.
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@@ -65,6 +65,25 @@ ksort($arr); // Sort associative arrays in ascending order, according to the key
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arsort($arr); // Sort associative arrays in descending order, according to the value.
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arsort($arr); // Sort associative arrays in descending order, according to the value.
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krsort($arr); // Sort associative arrays in descending order, according to the key.
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krsort($arr); // Sort associative arrays in descending order, according to the key.
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/** /
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* Array Functions
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*
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* This are functions that you can use to manipulate the arrays
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*/
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count($arr); // This will count the length of the array values
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array_push($arr, ['Jane', 200, 500]); // Accepts two parameters. And this adds new value to the end of the array
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array_pop($arr); // This removes the value at the end of the array
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array_shift($arr); // This removes the first index of the array
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array_unshift($arr, ['PHP', 1999, 2024]); // Accepts two parameters. This adds new value in the first index of the array
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array_slice($arr, 0, 1); // Accepts two or three parameters. This removes the selected index from the array.
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$arr2 = [["Lebron James", 2003, 2024], ["Michael Jordan", 1989, 2001]];
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array_splice($arr, 0, 2, $arr2); // Accepts three or four parameters. This removes specified index from the array and replaces new value.
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array_reverse($arr); // This reverses the value of the array.
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/**
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/**
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* Conditions
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* Conditions
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*/
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*/
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@@ -78,6 +97,17 @@ if($i > 10) {
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}
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}
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// Switch Conditions
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switch($arr) {
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case 1:
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break;
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case 2:
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break;
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case 3:
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break;
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default:
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}
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// Ternary
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// Ternary
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$string = $state == 'Running' ? 'He is running' : 'I don\'t know';
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$string = $state == 'Running' ? 'He is running' : 'I don\'t know';
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@@ -86,23 +116,19 @@ $string = $startDate ?? '';
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/**
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/**
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* Ways of looping
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* Ways of looping
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* NOTE: Look out for and avoid having an infinite loop!
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*/
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*/
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continue; // Skip current iter
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continue; // Skip current iter
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break; // Exit loop
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break; // Exit loop
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// Foreach
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// For loop
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foreach($arr as $key => $value) {
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// gets the initial value, validates if initial value is less than the count; if true add one.
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$key = $key;
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for($i = 0; $i < count($arr); $i++) {
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$value = $value;
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}
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// For
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for($i = 0; $i < count($arr); $i++) {
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$key = $i;
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$key = $i;
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$value = $arr[$i];
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$value = $arr[$i];
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}
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}
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// While
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// While loop
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$i = 0;
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$i = 0;
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while($i < count($arr) - 1) {
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while($i < count($arr) - 1) {
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$key = $i;
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$key = $i;
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@@ -116,15 +142,11 @@ do {
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$value = $arr[$i];
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$value = $arr[$i];
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} while($i < count($arr));
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} while($i < count($arr));
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// Switch
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// Foreach
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switch($arr) {
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// Iterates through the array. It could get only the value or the key and value of the array
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case 1:
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foreach($arr as $key => $value) {
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break;
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$key = $key;
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case 2:
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$value = $value;
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break;
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case 3:
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break;
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default:
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}
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}
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/**
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/**
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@@ -21,7 +21,6 @@ cat /proc/<process_id>/maps # Show the current virtual memory usage of a Linux
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ip r # Display ip of the server
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ip r # Display ip of the server
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lsof -i :9000 # List process running on port 9000
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lsof -i :9000 # List process running on port 9000
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kill -9 $(lsof -t -i:PORT) # Kill the process running on whichever port specified
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journalctl -u minio.service -n 100 --no-pager # List last 100 logs for specific service
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journalctl -u minio.service -n 100 --no-pager # List last 100 logs for specific service
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