Morse Code - JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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Morse Code

Converts an English word or phrase into it's Morse Code combination of dots and dashes. Analyzing each letter entered individually, as this script demonstrates, is a very useful JavaScript programming technique.

Insert into <HEAD>

<!-- Begin
function translate(form) {
letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ .,?:-!";
morse = new Array(
".-","-...","-.-.","-..",".","..-.",
"--.","....","..",".---","-.-",".-..",
"--","-.","---",".--.","--.-",".-.",
"...","-","..-","...-",".--","-..-",
"-.--","--..",".-","-...","-.-.","-..",
".","..-.","--.","....","..",".---",
"-.-",".-..","--","-.","---",".--.",
"--.-",".-.","...","-","..-","...-",
".--","-..-","-.--","--.."," ",".-.-.-",
"--..--","..--..","---...","-....-","!");

form.output.value = "";
var input = form.input.value;
output = "";
for(count = 0; count < input.length; count++) {
daChar = input.charAt(count);
for (i = 0; i < letters.length; i++) {
if (daChar == letters.charAt(i)) {
output += morse[i];
break;
      }
   }
}
form.output.value = output;
}
//  End -->
</script>

Insert into <BODY>

Other Options