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<!DOCTYPE html> <html> <body> <h1>Demo: JavaScript String</h1> <p id="p1"></p> <p id="p2"></p> <p id="p3"></p> <p id="p4"></p> <script> let str = 'Hello World'; let ch1 = str[0] // H let ch2 = str[1] // e let ch3 = str.at(2) // l let ch4 = str.at(3) // l //str[4] = "P"; //error document.getElementById("p1").innerHTML = ch1; document.getElementById("p2").innerHTML = ch2; document.getElementById("p3").innerHTML = ch3; document.getElementById("p4").innerHTML = ch4; </script> </body> </html>
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