How to Find the Stinky Parts of Your Code (Part II)

There are more code smells. Let’s keep changing the aromas. We see several symptoms and situations that make us doubt the quality of our development. Let's look at some possible solutions.

There are more code smells. Let’s keep changing the aromas. We see several symptoms and situations that make us doubt the quality of our development. Let's look at some possible solutions.

Most of these smells are just hints of something that might be wrong. They are not rigid rules.

This is part II. Part I can be found here.

Code Smell 06 - Too Clever Programmer

The code is difficult to read, there are tricky with names without semantics. Sometimes using language's accidental complexity.

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Problems

• Readability
• Maintainability
• Code Quality
• Premature Optimization

Solutions

1. Refactor the code
2. Use better names

Examples

• Optimized loops

Exceptions

• Optimized code for low-level operations.

Sample Code

Wrong

function primeFactors(n){
      var f = [],  i = 0, d = 2;  

      for (i = 0; n >= 2; ) {
         if(n % d == 0){
           f[i++]=(d); 
           n /= d;
        }
        else{
          d++;
        }     
      }
      return f;
    }

Right

function primeFactors(numberToFactor){
      var factors = [], 
          divisor = 2,
          remainder = numberToFactor;

      while(remainder>=2){
        if(remainder % divisor === 0){
           factors.push(divisor); 
           remainder = remainder/ divisor;
        }
        else{
          divisor++;
        }     
      }
      return factors;
    }

Detection

Automatic detection is possible in some languages. Watch some warnings related to complexity, bad names, post increment variables, etc.

pixel-face code-smells clean-code stinky-code-parts refactor-legacy-code refactoring stinky-code common-code-smells

The code smells bad. Let’s see how to change the aromas. In this series, we will see several symptoms and situations that make us doubt the quality of our developments. We will present possible solutions. Most of these smells are just hints of something that might be wrong. They are not rigid rules.

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