concat : JavaScript string addition

var my_var1=" Hello Welcome"
var my_var2=" to plus2net.com "
var my_var3= " JavaScript Section "
var my_var=my_var1.concat(my_var2, my_var3)
document.write(my_var);

Hello Welcome to plus2net.com JavaScript Section

variable.concat("string1","string2","string3","string4");

Examples

var new_var="";
new_var= new_var.concat("First one", " Second One", " Third one ");
document.write(new_var)

By using + operator

var my_var1=" Hello Welcome"
var my_var2=" to plus2net.com "
var my_var3= " JavaScript Section "
var my_var=my_var1 + my_var2 + my_var3
document.write(my_var);

var my_var=""
 my_var +=" Hello Welcome"
 my_var +=" to plus2net.com "
 my_var += " JavaScript Section "
document.write(my_var);