Iterating through Arrays
Javascript
The 'forEach' method allows you to execute a provided function once for each element in an array. For example, `['apple', 'banana', 'orange'].forEach(fruit => console.log(fruit));` will output each fruit to the console: 'apple', 'banana', 'orange'.
Filtering Arrays
Javascript
The 'filter' method creates a new array containing only elements that meet a specified condition. You can use a callback function to define this condition. For example, `const evenNumbers = [1, 2, 3, 4, 5].filter(num => num % 2 === 0);` results in `evenNumbers = [2, 4]`.
Array methods
Javascript
The 'map' method allows you to iterate through each element of an array and apply a function to it. In this case, we create a new array where each element is doubled. For example, `const doubledArray = [1, 2, 3, 4, 5].map(num => num * 2);` will result in `doubledArray = [2, 4, 6, 8, 10]`.
JavaScript Pipeline with Array Methods
Javascript
The JavaScript pipeline empowers you to effectively manipulate arrays by combining array methods like map, filter, and reduce. For example, you can filter an array based on a condition, then use map to modify the remaining elements, and finally use reduce to accumulate a desired value. This approach promotes a readable and expressive way to handle data transformations.
JavaScript Pipeline
Javascript
The JavaScript pipeline, also known as method chaining, allows for a sequential flow of data transformations. You can use it to chain together various methods like map, filter, reduce, etc., to process data in a concise and efficient way. For instance, using the filter method, you can select specific elements based on a condition, and then apply the map method to transform the remaining elements. The pipeline concept is an integral part of functional programming, emphasizing immutability and data transformations.