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JavaScript Array Object
Array Object
The Array object is used to store multiple values in a single variable.
For a tutorial about Arrays, read our JavaScript Array Object tutorial.
Array Object Properties
| Property | Description |
|---|---|
| constructor | Returns the function that created the Array object's prototype |
| length | Sets or returns the number of elements in an array |
| prototype | Allows you to add properties and methods to an Array object |
Array Object Methods
| Method | Description |
|---|---|
| concat() | Joins two or more arrays, and returns a copy of the joined arrays |
| indexOf() | Search the array for an element and returns its position |
| join() | Joins all elements of an array into a string |
| lastIndexOf() | Search the array for an element, starting at the end, and returns its position |
| pop() | Removes the last element of an array, and returns that element |
| push() | Adds new elements to the end of an array, and returns the new length |
| reverse() | Reverses the order of the elements in an array |
| shift() | Removes the first element of an array, and returns that element |
| slice() | Selects a part of an array, and returns the new array |
| sort() | Sorts the elements of an array |
| splice() | Adds/Removes elements from an array |
| toString() | Converts an array to a string, and returns the result |
| unshift() | Adds new elements to the beginning of an array, and returns the new length |
| valueOf() | Returns the primitive value of an array |
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