JS filter / replace sensitive characters

Text box for input content

   <input type="text" id="ip1"> 

Replace button

   <button id="bt1"> Replace </button>

Minor case requirements ：

// Replace unhealthy ***
// When you click the replace button , Get the user's input , If the access content contains violence , Replace it with ***
// Click event onclick

  var bt1=document.getElementById("bt1")
  bt1.onclick=function(){
    
  var ip1=document.getElementById("ip1")
  var content=ip1.value

// take content Medium sensitive characters Replace with ***
// Replace the string specified in the string

Console console.log（content） Output

     content=content.replace(" unhealthy ","***") 
    // console.log(content)
    ip1.value=content
   }

That ends here , But it's not completely over .

Thinking questions ：

As shown in the figure above ： Suppose you enter two... In the text box / Multiple sensitive characters （ unhealthy ）, Clicking the replace button will only replace the first unhealthy one with ***, If there is a second / The result of multiple unhealthy clicks on the replace button is zsdcaasc***, In this way , The problem arises , How can we replace all specified strings ？ Of course, this question is left for everyone to think .