showing results for - "functions in arrays javascript"
Frieda
05 Jul 2017
1concat(arr1,[...]) // Joins two or more arrays, and returns a copy of the joined arrays
2copyWithin(target,[start],[end]) // Copies array elements within the array, to and from specified positions
3entries() // Returns a key/value pair Array Iteration Object
4every(function(currentval,[index],[arr]),[thisVal]) // Checks if every element in an array pass a test
5fill(val,[start],[end]) // Fill the elements in an array with a static value
6filter(function(currentval,[index],[arr]),[thisVal]) //	Creates a new array with every element in an array that pass a test
7find(function(currentval,[index],[arr]),[thisVal]) // Returns the value of the first element in an array that pass a test
8findIndex(function(currentval,[index],[arr]),[thisVal]) // Returns the index of the first element in an array that pass a test
9forEach(function(currentval,[index],[arr]),[thisVal]) // Calls a function for each array element
10from(obj,[mapFunc],[thisVal]) // Creates an array from an object
11includes(element,[start]) // Check if an array contains the specified element
12indexOf(element,[start]) // Search the array for an element and returns its position
13isArray(obj) // Checks whether an object is an array
14join([seperator]) // Joins all elements of an array into a string
15keys() // Returns a Array Iteration Object, containing the keys of the original array
16lastIndexOf(element,[start]) // Search the array for an element, starting at the end, and returns its position
17map(function(currentval,[index],[arr]),[thisVal]) // Creates a new array with the result of calling a function for each array element
18pop() // Removes the last element of an array, and returns that element
19push(item1,[...]) // Adds new elements to the end of an array, and returns the new length
20reduce(function(total,currentval,[index],[arr]),[initVal]) // Reduce the values of an array to a single value (going left-to-right)
21reduceRight(function(total,currentval,[index],[arr]),[initVal]) // Reduce the values of an array to a single value (going right-to-left)
22reverse() // Reverses the order of the elements in an array
23shift() // Removes the first element of an array, and returns that element
24slice([start],[end]) // Selects a part of an array, and returns the new array
25some(function(currentval,[index],[arr]),[thisVal]) // Checks if any of the elements in an array pass a test
26sort([compareFunc]) // Sorts the elements of an array
27splice(index,[quantity],[item1,...]) // Adds/Removes elements from an array
28toString() // Converts an array to a string, and returns the result
29unshift(item1,...) // Adds new elements to the beginning of an array, and returns the new length
30valueOf() // Returns the primitive value of an array
Megan
04 Jan 2021
1var argsContainer = ['hello', 'you', 'there'];
2var functionsContainer = [];
3
4for (var i = 0; i < argsContainer.length; i++) {
5var currentArg = argsContainer[i]; 
6
7  functionsContainer.push(function(currentArg){
8    console.log(currentArg);
9  });
10};
11
12for (var i = 0; i < functionsContainer.length; i++) {
13  functionsContainer[i](argsContainer[i]);
14}
Germaine
09 May 2020
1<script>    
2    // Defining function to get unique values from an array
3    function getUnique(array){
4        var uniqueArray = [];
5        
6        // Loop through array values
7        for(var value of array){
8            if(uniqueArray.indexOf(value) === -1){
9                uniqueArray.push(value);
10            }
11        }
12        return uniqueArray;
13    }
14    
15    var names = ["John", "Peter", "Clark", "Harry", "John", "Alice"];
16    var uniqueNames = getUnique(names);
17    console.log(uniqueNames); // Prints: ["John", "Peter", "Clark", "Harry", "Alice"]
18</script>
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