<script> 
  
    // With single quotes 
    let string1 = 'GFG!'; 
    console.log(string1); 
      
    // With double quotes 
    let string2 = "Geeks for Geeks"
    console.log(string2); 
</script>

GFG!
Geeks for Geeks

<script> 
  
    // Using double quotes inside a string 
    let string1 = 'GFG is "Awesome"!'; 
    console.log(string1); 
      
    // Using single quotes inside a string 
    let string2 = "'Geeks' for 'Geeks'"; 
    console.log(string2); 
</script>

GFG is "Awesome"!
'Geeks' for 'Geeks'

<script> 
    let str = new String("GFG"); 
    console.log(str); 
</script>

[String: 'GFG']

<script> 
    let string1 = "Hello, \'Sam\' is using \"Geeks for Geeks\""; 
    console.log(string1); 
</script>

Hello, 'Sam' is using "Geeks for Geeks"

<script> 
    let string1 = "GFG is Awesome"; 
    console.log("Before Replacing : ",string1); 
    let string2 = string1.replace("GFG" , "Geeks For Geeks"); 
    console.log("After  Replacing : ",string2); 
</script>

Before Replacing :  GFG is Awesome
After  Replacing :  Geeks For Geeks is Awesome

<script> 
    let string1 = "helo"; 
    console.log(string1);     
    let string2 = string1.substring(0,2)  
        + 'l' + string1.substring(2); 
    console.log(string2); 
</script>

helo
hello

<script> 
    let name = 'GFGWebsite'; 
      
    // Using split 
    let arr1 = name.split(''); 
    arr1[0]='A'; 
    let string1 = arr1.join(""); 
    console.log(string1); 
      
    // Using spread operator 
    let arr2 = [...name]; 
    arr2[1]='B'; 
    arr2[2]='C'; 
    let string2 = arr2.join(""); 
    console.log(string2); 
      
    // Using Array.from 
    let arr3 = Array.from(name); 
    arr3[1]='-'; 
    let string3 = arr3.join(""); 
    console.log(string3); 
      
    // Using Object.assign 
    let arr4 = Object.assign([], name); 
    arr4[5]='+'; 
    let string4 = arr4.join(""); 
    console.log(string4); 
</script>

AFGWebsite
GBCWebsite
G-GWebsite
GFGWe+site