Declaring Variable
We will start with declaring variables because usually it is one of the first things you will do in your program. You can save plenty of space and time by declaring your variables on one line.
Check if Something is true
Although the below example is not exactly equal, it still works and is a common shortcut
For Looping
Also with looping if you want to get the index or the key in the array you can write…
for(let index in colors) or for (let key in colors)
Template Literals
Instead of using the (+) and concatenate strings we can use ` ${variable}` those are backtiks not quotes.
Destructuring
while using a frame work like React JS, you will most likely use arrays or data in the form of object literals to pass date between APIs and components. You will need to unpack it.
Making Mandatory Parameter
JavaScript will set function parameters as undefined when not passed a value. If you what to force a parameter to be assigned a easy short hand trick is below.
Ternary Operator
Using a ternary operator can save you lots of line of code you can put multiple lines of code into one line that is easier to read.
Arrow Function
Another way to write a function is with a arrow function which is also a little easier to read.
Object Property Assignment
When a variable name and a object key’s name is the same then we only need to mention the variable name instead of both the key and the value. JavaScript will take care of the rest for you like magic.
Merge Arrays
This shortcut takes advantage of using a spread operator.
Conclusion
These listed shortcuts are only a few shortcuts of many, they can be used to cut down on time and length of your code. They can also help make your code more readable and easier to follow, as long as you know how to use these they will make your coding journey better. Take some time to research some other there are plenty out there.
