Reading variable from multi line string in javascript

Question

I have multiline string in javascript. I have input element the value of which is set to, value fetched from file.

What I am not able to do is to set the value of this input element to value of this variable.

let port="";
let xmlData = fs.readFileSync(xmlFileRW,function(err,data){port=data;});

let xmlFileData = `
    <form> 
    <tr>
      <th class="hostid-th-padding">
        <b>PORT</b>
      </th>
      <td class="hostid-td-padding">
        <input id="port" type="text" size="7" value=""+port+"" onkeypress="buttonEnable()"></input>
      </td>
    </tr>

`${port}` - use correct template literal syntax – VLAZ Jun 21 '19 at 13:34 — VLAZ, Jun 21 '19 at 13:34

score 1 · Accepted Answer · edited Jun 21 '19 at 13:39

1

let port="";
let xmlData = fs.readFileSync(xmlFileRW,function(err,data){port=data;});

let xmlFileData = `
    <form> 
    <tr>
      <th class="hostid-th-padding">
        <b>${port}</b>
      </th>
      <td class="hostid-td-padding">
        <input id="port" type="text" size="7" value="${port}" onkeypress="buttonEnable()"></input>
      </td>
    </tr>
`

edited Jun 21 '19 at 13:39

VLAZ

26,331
9
49
67

answered Jun 21 '19 at 13:37

folo

476
4
5

Hi VLAZ, it works but if the file doesn't exist at all then port value is empty, I see in the input box "onkeypress="buttonEnable()" – karansys Jun 21 '19 at 13:44
1

@karansys `port = data || ""` to set a default value of an empty string. – Ace Jun 21 '19 at 13:46

Reading variable from multi line string in javascript

1 Answers1