Refactoring Extract Method(Solution 1)

extract-method-solution1.ts

class LongMethod {
    description: string = 'I need Refactoring'

    printBanner(): void {
        console.log('printBanner')
    }
    
    getOutMethod(): string {
        return 'getOutMethod'
    }

    printOwing(): void {
        this.printBanner()

        // Print details
        console.log(`description: ${this.description}`)
        console.log(`amout: ${this.getOutMethod()}`)
    }
}

const longMethodExample = new LongMethod()

console.log('Long Method \n')
longMethodExample.printOwing()


class ExtractMethod {
    description: string = 'I was refactored, thanks god!'

    printBanner(): void {
        console.log('printBanner')
    }
    
    getOutMethod(): string {
        return 'getOutMethod'
    }

    // Refactoring...
    printOwing(): void {
        this.printBanner()
        this.printDetails()
    }

    printDetails(): void {
        console.log(`description: ${this.description}`)
        console.log(`amout: ${this.getOutMethod()}`)
    }
}

const extractMethodExample = new ExtractMethod()

console.log('Extract Method \n')
extractMethodExample.printOwing()