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JavaScript method to use indexOf to obtain the position of a substring in a string_javascript tips

WBOYOriginal: 2016-05-16 16:05:261004browse

The example in this article describes how JavaScript uses indexOf to obtain the position of a substring in a string. Share it with everyone for your reference. The details are as follows:

<!DOCTYPE html>
<html>
<body>
<p id="demo">
Click the button to locate where in the string
a specifed value occurs.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var str="Hello world, welcome to the universe.";
var n=str.indexOf("welcome");
document.getElementById("demo").innerHTML=n;
}
</script>
</body>
</html>

I hope this article will be helpful to everyone’s JavaScript programming design.

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JavaScript method to use indexOf to obtain the position of a substring in a string_javascript tips

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