javascript 干燥反应组件方法的干燥方法

Posted 2021-05-03

// The Slow and Ugly Way

export default class Example extends React.Component {

  constructor(props) {
    super(props)
      
    this.methodA = this.methodA.bind(this)
    this.methodB = this.methodB.bind(this)
    this.methodC = this.methodC.bind(this)
    this.methodD = this.methodD.bind(this)
  }
  
}

// The DRY and (Slightly) Better-Looking Way

export default class Example extends React.Component {

  constructor(props) {
    super(props)
  
    const boundMethods = [
      'methodA',
      'methodB',
      'methodC',
      'methodD'
    ]
      
    boundMethods.forEach(method => this[method] = this[method].bind(this))
  }
  
}