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5 JavaScript Tricks That Will Make You a Better Developer

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Published Date : 26-06-2025

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Fullstack Guru

JavaScript is among the most widely used programming languages worldwide. It is the foundation for contemporary web development, allowing dynamic and interactive online applications. However, JavaScript is a language full of potential patterns and hidden jewels that go beyond its fundamentals and can greatly enhance your coding abilities.


Your productivity and code quality can be enhanced by learning smart JavaScript approaches, regardless of your degree of excellence as a web developer. Completing a web development course in Pune will give you a wide range of knowledge in the field. Continue reading the blog for the five JavaScript tricks that will make you a better developer.


1. Convert Your Number into Strings


Converting to a string is a major type of conversion. Here is how to convert numerical quantities to strings:


{% code-block language="js" %}
const value = 1 + "";
Console.log ("Value after converting it into String”) 
console.log("Type of value is : Type of value”);
{% code-block-end %}


Here, the concatenation operator "+" is used. It might have also used an empty set of double quotations. However, the concatenation operator swiftly converted our integer into a string. You can also complete a web development course in Pune to understand the tricks clearly.


2. Mastering The Spread and Rest Operation


The spread and rest operators share the same syntax—three dots (…)—developers frequently mistake them for one another. Nonetheless, they are employed in various situations and have distinct functions. You can easily understand this method by completing web development classes in pune.


Typically, arrays, object attributes, etc., are expanded using the spread operator. Spread operators can distribute an array's elements as needed. As a result, it can be used as a copy element from one array to another. 


const arrayA = [2, 2, 3];
const arrayB = [4, 7, 8];
Const newArray = [...arrayA, ...arrayB];
// Output: [2, 2, 3, 4, 7, 8]


3. Quick Powers To Improve and Speed Up Your JavaScript


You can now easily use the exponentiation operator "" with ES7. This is a time-saving utility, or shorthand for powers, because it is far faster than the Math.pow(2, 3) method. By completing an online full stack training in Pune you can get to know the tricks to speed up JavaScript. Here is how you can learn how to speed up your JavaScripts.


{% code-block language="JS"%}
Console.log("2 ** 3: "+ 2  ** 3)
{% code-block end %}


You also want to be sure you are not confusing this with the symbol "^." This symbol is commonly used to denote exponents. In JavaScript, it represents the bitwise XOR operator. If ES7 did not exist, you could deal with powers using shorthand with a base of two.


{% code-block language="JS"%}
Console.log("Math.pow(2,3): ", Math.pow( 2,3)
{% code-block end%}


4. Compare Arrays in JavaScript in Seconds


You have to ensure that each value and place was used as intended. Typically, you would have used the for loop to complete this work. Here is an easier, simpler, and quicker way to do this:


{% code-block language="js"%}.
const has same element = { return a.length === b.length && a.every((v,i) => v=== b [i]
Console.log("hasSameElements([1,2],[2,3]): ", hasSameElements([1,2],[2,3])); //false
Console.log("hasSameElements([1,2],[1,2]):",hasSameElements([1,2],[1,2]));//true {% code-block-end%}


You should ensure that the length is equal. If it isn't, it returns false. To check each array for falseness, we called a.every(). However, this approach cannot be applied to a nested array.


5. Simple Trick for Getting the Last Item(s) in an Array


The slice() array method for getting the last items in an array can accept negative numbers. Offering the values at the end rather than the beginning will also take them from the end.  By completing full stack classes in pune, you can learn about the simple tricks to become a better developer. Here are the tips for doing it.


{% code-block language="JS"%}
Let array = [1, 2, 3, 4, 5, 6, 7, 8, 9];
Console.log("array.slice(-1):",array.slice(-1));//[9]console.log("array.slice(-2):", array.slice(-2));//[8, 9]console.log("array.slice(-3): ", array.slice(-3));//[7, 8, 9]
{% code-block end%}


Bottom Line


Understanding these five JavaScript tips will greatly increase code readability, productivity, and coding abilities. These methods, which include destructuring, optional chaining, and effective use of async/await, streamline and improve the efficiency of your development process. 
To continue developing your skills and learning new JavaScript capabilities to stay ahead of the curve in the always-changing field of web development, you should complete a web development course in Pune. Over time, minor tweaks yield significant outcomes, so you should keep updating yourself.