Modern Application Development II Quiz 2: 10 July 2022 (May 2022 term)

1const a = new Vue({
2    el : '#app',
3    data : {
4        data : "",
5        refreshes : 0,
6    },
7    methods: {
8
9        do_something() {
10            if (isNaN(this.refreshes)) this.refreshes = 0;
11            if (this.data.length % 2) {
12                sessionStorage.data = "prefix" + this.data;
13                sessionStorage.refreshes = this.refreshes * 2 + 1;
14            }
15            else {

1                sessionStorage.data = this.data + "suffix";
2                sessionStorage.refreshes = this.refreshes * 2 - 1;
3            }
4        }
5    },
6    mounted : function () {
7        if (sessionStorage.data) {
8            this.data = "suffix" + sessionStorage.data;
9            this.refreshes = Number(sessionStorage.refreshes) % 3 - 1;
10        }
11
12        else {
13            this.data = sessionStorage.data + "prefix";
14            this.refreshes = Number(sessionStorage.refreshes) % 3 + 1;
15        }
16
17        sessionStorage.data = this.data;
18        sessionStorage.refreshes = this.refreshes;
19    }
20})

1const store = new Vuex.Store({
2    state : {
3        companies : [
4            {
5                name : 'sample1',
6                website : 'sample1.com',
7                capital : 50000
8            },
9            {
10                name : 'sample2',
11                website : null,
12                capital : 75000
13            },
14            {
15                name : 'sample3',
16                website : 'sample3.com',
17                capital : 42000
18
19            },
20            {
21                name : 'sample4',
22                website : 'sample4.com',
23                capital : 38000
24            },
25        ],
26        awardees : []
27    },
28
29    mutations : {
30        update_final(state, minimum) {
31
32            for (company of state.companies)
33                code2
34        }
35    },
36    actions : {
37        send_task : function (context) {
38            code1
39        }
40    }
41})

1async function FetchFunct(ApiUrl) {
2  const response = await fetch(ApiUrl).catch(() => {
3    throw new Error('Network Error')
4  })
5
6  if (response) {
7    if (response.ok) {
8      const data = await response.json().catch(() => {
9        throw new Error('Unexpected Error')
10      })
11      if (data) {
12        return data
13      }
14    } else {
15      throw new Error(response.statusText)
16    }
17  }
18}
19Const url = ‘dummyUrl’
20FetchFunct(url)
21  .then((data) => {
22    console.log(data)
23  })
24  .catch((err) => {
25    console.log(err.message)
26  })