In the previous blog I was post the basic array methods.In this blog discuss the detail about the array methods.
Array length:
◾The length method returns the count or size of an array.
EXAMPLE:
🔹In the array have 5 elements,so its returns the length 5.
OUTPUT:
Array toString()
◾The tostring()method returns the elements of an array to a separated string with a comma.
EXAMPLE:
🔹This method converts a every single Mobilebrand into an one single array seperate a comma.
OUTPUT:
Array at()
◾The at() method returns an indexed element from an array.
EXAMPLE:
🔹 Mobilebrand.at(3) returns a indexed element 3 'samsung'.
OUTPUT:
Array Join()
◾The join() method also joins all array elements into a string.
◾This acts like a tostring().
EXAMPLE:
🔹In this join() method we give a (+),so its create a array into a string joins with inbetween (+) element.
OUTPUT:
Array pop()
◾The pop() method removes the last element from an array.
EXAMPLE:
🔹pop() method removes the end element 'nothing' frome the array.
OUTPUT:
Array push()
◾The push() method adds a new element in the end of an array.
EXAMPLE:
🔹push() method adds a 'vivo' end of the array.
OUTPUT:
Array shift()
◾The shift() method removes the first array element and "shifts" all other elements to a starting index.
EXAMPLE:
🔹Shift() method removes first element 'realme'.
🔹The balance elements shifts the place of removed element.
OUTPUT:
Array unshift()
◾The unshift() method adds a new element in the beginning of an array and the other elements unshifts the older elements.
EXAMPLE:
🔹'oneplus' added to the beginning of the array.
OUTPUT:
Array.isArray()
◾The Array.isArray()used to finds array is really a array to returns a true.
EXAMPLE:
🔹Mobilebrand is array,so its returns a true.
OUTPUT:
Array delete()
◾delete()method returns a undefined.
◾Use the push and pop method instead of delete.
EXAMPLE:
🔹Mobilebrand[1] defines undefined.
OUTPUT:
Array concat()
◾The concat() method creates a new array to merging the existing arrays.
EXAMPLE:
🔹Concat merge the GroupB array to existing array GroupA to in a single array.
OUTPUT:
Array copy Within()
◾The copy Within() method copies array elements to another position in an array.
EXAMPLE:
OUTPUT:
Array flat()
◾The flat() method creates a new array and merge with sub-array.
EXAMPLE:
🔹flat method Merge the sub arrays with array
groups.
🔹Merge the sub array numbers in one array.
OUTPUT:
Array splice()
◾The splice() method can be used to add new items to an array.
EXAMPLE 1:
OUTPUT 1:
🔹The first parameter (2) defines the position where new elements should be added.
🔹dc and srh added index 2
🔹The second parameter (0) defines how many elements should be removed.
🔹Second value is 0 no value has been removed.
EXAMPLE 2:
🔹The first parameter (2) defines the position where new elements should be added.
🔹dc and srh added index 2
🔹The second parameter (1) defines how many elements should be removed.
🔹Second value is 1,so 'rcb' has been removed.
OUTPUT 2:
Array Slice()
◾The slice() method slices out a piece of an array into a new array:
EXAMPLE:
🔹Slice out a part of an array starting from array element 1 ("csk")
OUTPUT:
Array to Spliced()
◾It also removes the element from the array.
EXAMPLE:
🔹'0' defines the index and '2' defines the two elements.
🔹Elements removed starting from the index 0 to two elements.
OUTPUT:
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