CODEWITHSUNDEEP
javascriptarraysreactjsecmascript-6es6-promise
Jon
Jon

Reputation: 313

React : How to reset state value in ReactJS

I am working on sorting . Actually it working fine I can sort data in asc and desc . I am using sorting for different fields. For example I have 5 fields in table if user want to sort data for field 1 and user click on next ( I am also using pagination ) , now let suppose user is on page 5 and user want to sort data for fields 2 here I want to reset the value of state to initial value ( Initial Value of state val1=5 and val2=0 ). How I will do this , I am new to ReactJS , Could someone please help me how I can fix this problem .

Sorry , If I made mistake in English Grammar because I am not native speaker .

Code 

    sortingData= (ascValue,desValue) => {
this.setState(
   {
     dataSort:
     this.state.sortedData === ascValue? desValue: ascValue
   },
   () => {
     this.loadData();
   }
);

}

**Full Component Code**

    class Example extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      Item: 5,
      skip: 0
    }

    this.handleClick = this.handleClick.bind(this);
  }

  urlParams() {
    return `http://localhost:8001/meetups?filter[limit]=${(this.state.Item)}&&filter[skip]=${this.state.skip}`
  }

  handleClick() {
    this.setState({skip: this.state.skip + 1})
  }

  render() {
    return (
      <div>
        <a href={this.urlParams()}>Example link</a>
        <pre>{this.urlParams()}</pre>
        <button onClick={this.handleClick}>Change link</button>
      </div>
    )
  }
}


ReactDOM.render(<Example/>, document.querySelector('div#my-example' ))

Upvotes: 1

Views: 798

Answers (1)

prabin badyakar
prabin badyakar

Reputation: 1726

Better thing to do it to have state for all five data.

// In constructor

state = {
    dataSort: {
        data1: {sortedBy: asc, pagination: 1},
        data2: {sortedBy: asc, pagination: 1},
        data3: {sortedBy: asc, pagination: 1}, 
        data4: {sortedBy: asc, pagination: 1},
        data5: {sortedBy: asc, pagination: 1}
    }
}

// When updating sorting logic for particular data

this.setState({
    dataSort: {
        ...dataSort,
        data1: {
            sortBy: this.state.dataSort.data1 === val1? val2  : val1;
            pagination: 5
        }
    }
})

Now, if you want to reset then you can just change the pagination value or sortby value for particular data.

Upvotes: 1

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