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Merge pull request #4 from JohnFTitor/refactor-hooks
Refactor hooks
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Original file line number | Diff line number | Diff line change |
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@@ -1,64 +1,43 @@ | ||
import React from 'react'; | ||
import React, { useState, useEffect } from 'react'; | ||
import '../styles/calculator.css'; | ||
import CalculatorButton from './CalculatorButton'; | ||
import calculate from '../logic/calculate'; | ||
import Display from './CalculatorDisplay'; | ||
// As required for this project, components will be defined class based | ||
|
||
class Calculator extends React.Component { | ||
constructor(props) { | ||
super(props); | ||
this.state = { | ||
calculatorObj: {}, | ||
}; | ||
this.calculateHandler = this.calculateHandler.bind(this); | ||
} | ||
const Calculator = () => { | ||
const [calculatorObj, setCalculatorObj] = useState({}); | ||
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||
componentWillUnmount() { | ||
this.setState(() => ({ | ||
calculatorObj: {}, | ||
})); | ||
} | ||
useEffect(() => setCalculatorObj({}), []); | ||
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calculateHandler(buttonName) { | ||
this.setState((previousState) => ({ | ||
calculatorObj: calculate(previousState.calculatorObj, buttonName), | ||
})); | ||
} | ||
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render() { | ||
const { calculatorObj } = this.state; | ||
return ( | ||
<div className="calculator-container"> | ||
<Display | ||
total={calculatorObj.total} | ||
next={calculatorObj.next} | ||
operation={calculatorObj.operation} | ||
/> | ||
<div className="calculator-buttons"> | ||
<CalculatorButton value="AC" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="+/-" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="%" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="÷" calculateHandler={this.calculateHandler} isSign /> | ||
<CalculatorButton value="7" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="8" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="9" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="x" calculateHandler={this.calculateHandler} isSign /> | ||
<CalculatorButton value="4" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="5" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="6" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="-" calculateHandler={this.calculateHandler} isSign /> | ||
<CalculatorButton value="1" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="2" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="3" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="+" calculateHandler={this.calculateHandler} isSign /> | ||
<CalculatorButton value="0" calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="." calculateHandler={this.calculateHandler} /> | ||
<CalculatorButton value="=" calculateHandler={this.calculateHandler} isSign /> | ||
</div> | ||
return ( | ||
<div className="calculator-container"> | ||
<Display | ||
total={calculatorObj.total} | ||
next={calculatorObj.next} | ||
operation={calculatorObj.operation} | ||
/> | ||
<div className="calculator-buttons"> | ||
<CalculatorButton value="AC" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="+/-" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="%" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="÷" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} isSign /> | ||
<CalculatorButton value="7" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="8" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="9" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="x" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} isSign /> | ||
<CalculatorButton value="4" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="5" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="6" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="-" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} isSign /> | ||
<CalculatorButton value="1" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="2" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="3" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="+" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} isSign /> | ||
<CalculatorButton value="0" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="." calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} /> | ||
<CalculatorButton value="=" calculateHandler={setCalculatorObj} calculatorObj={calculatorObj} isSign /> | ||
</div> | ||
); | ||
} | ||
} | ||
</div> | ||
); | ||
}; | ||
|
||
export default Calculator; |
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