How to Iterate Over an Array in Reverse Order in TypeScript - Step by Step Examples
How to Iterate Over an Array in Reverse Order in TypeScript ?
Answer
To iterate over an array in TypeScript in reverse order, you can use a for
loop starting from the last index to the first index.
✐ Examples
1 Iterate Over Integer Array in Reverse with for Loop
In this example,
- We create an integer array named
numbers
with some values. - We use a
for
loop starting from the last index to iterate over each element of the array in reverse order.
TypeScript Program
const numbers: number[] = [1, 2, 3, 4, 5];
for (let i = numbers.length - 1; i >= 0; i--) {
console.log(numbers[i]);
}
Output
5 4 3 2 1
2 Iterate Over String Array in Reverse with forEach
In this example,
- We create a string array named
fruits
with some values. - We use the
forEach
method with an arrow function to iterate over each element of the array in reverse order.
TypeScript Program
const fruits: string[] = ['apple', 'banana', 'cherry'];
fruits.reverse().forEach((fruit: string) => {
console.log(fruit);
});
Output
cherry banana apple
Summary
In this tutorial, we learned How to Iterate Over an Array in Reverse Order in TypeScript language with well detailed examples.
More TypeScript Arrays Tutorials
- How to Declare an Array in TypeScript ?
- How to Initialize an Array in TypeScript ?
- How to Access Array Elements in TypeScript ?
- How to Access Array Elements using Index in TypeScript ?
- How to get First Element in Array in TypeScript ?
- How to get Last Element in Array in TypeScript ?
- How to check if an Array is Empty in TypeScript ?
- How to check if an Array is Not Empty in TypeScript ?
- How to get Sub Array in TypeScript ?
- How to Get Array Length in TypeScript ?
- How to Iterate Over an Array in TypeScript ?
- How to Iterate Over an Array in Reverse Order in TypeScript ?
- How to get the Index of Specified Element in an Array in TypeScript ?
- How to check if Specified Element is present in the Array in TypeScript ?
- How to count the Number of Occurrences of Specified Element in the Array in TypeScript ?
- How to Sort an Array in TypeScript ?
- How to Sort an Array in Ascending Order in TypeScript ?
- How to Sort an Array in Descending Order in TypeScript ?
- How to create a Two Dimensional Array in TypeScript ?
- How to Iterate over a Two Dimensional Array in TypeScript ?
- How to create a Three Dimensional Array in TypeScript ?
- How to Copy an Array in TypeScript ?
- How to Split an Array in TypeScript ?
- How to Join Arrays in TypeScript ?
- How to check if Two Arrays are Equal in TypeScript ?
- How to check if Two Arrays have Same Elements (Regardless of Order) in TypeScript ?
- How to Convert an Array of Integers to an Array of Strings in TypeScript ?
- How to Convert an Array of Strings to an Array of Integers in TypeScript ?
- How to Reverse an Array in TypeScript ?
- How to Shuffle an Array in TypeScript ?
- How to Rotate Elements in an Array in TypeScript ?
- How to Filter Elements of an Array based on a Condition in TypeScript ?
- How to Declare an Integer Array in TypeScript ?
- How to Declare a Float Array in TypeScript ?
- How to Declare a String Array in TypeScript ?
- How to Remove Duplicates in an Array in TypeScript ?
- How to Remove Specific Element from an Array in TypeScript ?
- How to Remove Element from Array based on a Condition in TypeScript ?
- How to Sort a String Array in Dictionary Order in TypeScript ?
- How to Concatenate Strings in Array in TypeScript ?