In this article, I’ll share 12 snippets of JavaScript code to solve your everyday development problems. This will be a toolkit that you can use freely in your JavaScript projects.
1. Intelligent data filtering
Use JavaScript’s built-in Filter method to Filter your data. This comes in handy when you have a lot of data in array form and want to filter some elements out of it.
2. Loop keys and values
Another useful snippet for iterating over the keys and values of data. We will use the forEach method to do this.
3. Deconstruct assignment
You can use the deconstruction method to decompress the array values and assign them to other variables. See the sample code below.
4. Split arrays
This is another useful snippet of code that slicing up your array without using any loops. The syntax for slice is slice(startIndex, endIndex).
5. Search for objects in an array
You can use the JavaScript find() method to search for objects in an Array. Here is a snippet code example.
6. Reverse the string
This code will show you how to reverse a string without using a loop.
7. Connection list
Now you don’t need to use functions and loops to merge multiple lists into one. You can use JavaScript’s built-in Concat() method.
See the code example below.
8. Capture right click
This simple snippet captures the right click of the mouse in a Web browser.
9. Built-in sorting
Sorting is a common problem in every programming language. In JavaScript, you can sort any list of elements using the sort() method.
10. Handle errors in JS
In programming, errors are always a headache. To handle errors in JavaScript, you can use try/catch statements. Check out the following syntax:
Find the index of an array element
Now you don’t need to traverse the entire Array to find the index of any element. Check out the code snippet below to make your life easier.
12. Check whether the string is uppercase
This is a simple snippet that helps you check whether a string is uppercase or lowercase.
