Extract only the first character:substr(0, 1) - Javascript String

Javascript examples for String:substr

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Description

Extract only the first character:substr(0, 1)

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<body>

<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {// www .  jav  a2 s  .co  m
    var str = "Hello world!";
    var res = str.substr(0, 1);
    document.getElementById("demo").innerHTML = res;
}
</script>

</body>
</html>

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