app.js

receivedData() {
        axios
            .get(`https://jsonplaceholder.typicode.com/photos`)
            .then(res => {

                const data = res.data;
                const slice = data.slice(this.state.offset, this.state.offset + this.state.perPage)
                const postData = slice.map(pd => <React.Fragment>
                    <p>{pd.title}</p>
                    <img src={pd.thumbnailUrl} alt=""/>
                </React.Fragment>)

                this.setState({
                    pageCount: Math.ceil(data.length / this.state.perPage),
                   
                    postData
                })
            });
    }