title: How do I replaceAll character from json string using javascript
body: <p>I have below json data I need to replace "=" to ":" by Javascript</p>
  
  <pre><code>{ "name"="John", "age"=30, "car"=null }
  </code></pre>
  
  <p>Expected output:</p>
  
  <pre><code>{ "name":"John", "age":30, "car":null }
  </code></pre>