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<!DOCTYPE html> <html> <body> <h1>Demo: JavaScript String Concatenation</h1> <p id="p1"></p> <p id="p2"></p> <script> let str1 = 'Hello '; let str2 = "World "; let str3 = str1 + str2; //Hello World let str4 = str1.concat(str2);//Hello World document.getElementById("p1").innerHTML = str3; document.getElementById("p2").innerHTML = str4; </script> </body> </html>
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