I have a huge string like this:

'<i class=""></i>'

I have a variable called icon. I need to place icon in between the two quotes. Although it feels simple, I've been struggling to wrap my head around it. Can someone please help? JS newbie here.

I have a huge string like this:

'<i class=""></i>'

I have a variable called icon. I need to place icon in between the two quotes. Although it feels simple, I've been struggling to wrap my head around it. Can someone please help? JS newbie here.

• javascript
• string

Share Improve this question Follow edited Jul 10, 2018 at 6:08 Di437 asked Jul 10, 2018 at 5:56 Di437Di437 18333 silver badges1212 bronze badges 4

• In class's quotes or between <i> tags? – ClaudiusDan Commented Jul 10, 2018 at 6:00
• Sorry, inside the class, its a font-awesome icon. It'll be something like "fa fa-building" – Di437 Commented Jul 10, 2018 at 6:02
• Answer below will do the job, – ClaudiusDan Commented Jul 10, 2018 at 6:02
• <i class=""></i>'.replace('""', '"' + icon + '"') might do the job. – RobG Commented Jul 10, 2018 at 6:16

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2 Answers 2

Sorted by: Reset to default 5

The delimiters of your string are ', so just end the ', concatenate the icon, and resume the ':

const icon = 'myIcon';
const str = '<i class="' + icon + '"></i>';
console.log(str);

But you might find it more readable to use a template literal instead, especially if you're building an HTML string, or if it's multi-line, or if you're having any issues with escape characters: begin and end the string with backticks, and insert variables by putting them inside of ${varNameHere}:

const icon = 'myIcon';
const icon2 = 'myIcon2';
const icon3 = 'myIcon3';
const str = `
<i class="${icon}"></i>
<i class="${icon2}"></i>
<i class="${icon3}"></i>
`;
console.log(str);

You can split it using .split() function.

  const icon = 'Idk'
  var str = '<i class = "">';
  var strSplit = str.split('"');
  var addString = strSplit[0] + '"' + icon + '"' + strSplit[2];
  console.log(addString);

The array strSplit contains ['<i class = ','','>']