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Automatically Convert String to Upper Case with Javascript
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script type="text/javascript"> | |
function changeEach(el){ | |
var text = document.getElementById(el).value; | |
var capital = text.toUpperCase(); | |
document.getElementById(el).value = capital; | |
} | |
function capitalize(e) { | |
var t = '"@.,”/!?%^&*=+<>|`~-_(){}[]#;:“0123456789'; | |
var n = ""; | |
var r = 0; | |
e: for (var i = 0; i < e.length; i++) { | |
for (var s = 0; s < t.length; s++) { | |
var o = e.charCodeAt(i); | |
if (o >= 65 && o <= 90 || o >= 97 && o <= 122) { | |
r = i; | |
break e; | |
} | |
} | |
} | |
if (r == 0) { | |
n = e.charAt(0).toUpperCase() + e.substring(1, e.length); | |
} else { | |
n = e.substring(0, r) + e.charAt(r).toUpperCase() + e.substring(r + 1, e.length - r + 1); | |
} | |
return n; | |
} | |
function firstLetter(id) { | |
var e = document.getElementById(id).value; | |
var t = ""; | |
var n = ""; | |
for (var r = 0; r < e.length; r++) { | |
var i = e.charCodeAt(r); | |
if (i == 32 || i == 10) { | |
if (n != "") { | |
t += capitalize(n) + (i == 10 ? "<br/><br/>" : " "); | |
n = ""; | |
continue; | |
} | |
n = ""; | |
} else { | |
if (n == "") { | |
n += e.charAt(r).toUpperCase(); | |
} else { | |
n += e.charAt(r).toLowerCase(); | |
} | |
} | |
} | |
t += capitalize(n) + " "; | |
document.getElementById(id).value = t; | |
} | |
</script> | |
<style type="text/css"> | |
li{ | |
list-style: none; | |
} | |
</style> | |
<title>Automatically Change Text to Upper Case</title> | |
</head> | |
<body> | |
<div id="container"> | |
<ul> | |
<h1>Change Each Letter to Upper Case</h1> | |
<li> | |
<input id="efname" type="text" name="efname" onChange="changeEach(this.id);" placeholder="First Name..."> | |
<input id="elname" type="text" name="elname" onChange="changeEach(this.id);" placeholder="Last Name..."> | |
</li> | |
<h1>Change First Letter of Each Word to Upper Case</h1> | |
<li> | |
<input id="ffname" type="text" name="ffname" onChange="firstLetter(this.id);" placeholder="First Name..."> | |
<input id="flname" type="text" name="flname" onChange="firstLetter(this.id);" placeholder="Last Name..."> | |
</li> | |
</ul> | |
</div> | |
</body> | |
</html> |
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