Javascript No Jquery - Split A Textareas Single Column List (unknown Line Count) & Display In Csv's Of 150
I am trying to put together what I thought would be an easy solution for a friend. He has a list of fan emails that he collects at gigs and off his website. He sticks them in a sin
Solution 1:
All you have to do is split the text into an array and then splice the array in a loop and join the slices you take out like this:
var emails= document.getElementById('emails').value.split(/\s+/), list="";
while(emails.length) {
list+=emails.splice(0,150).join(',')+"\n";
}
//list now has the result you are looking for
I have made an example of how to this here: http://jsfiddle.net/PfB42/2/
All you have to do is paste the emails into the text area and it will automatically change the format to the one you are looking for, and insert it to the <pre> area below the textarea
Solution 2:
This should achieve what you want. Don't be so hard on yourself mate :)
<html><head>
<script type="text/javascript">
function makeit(){
var enteredEmails = document.getElementById("emails").value;
var results = document.getElementById("results");
var index = 0;
var index2 = enteredEmails.indexOf("\n");
while(true) {
results.value += enteredEmails.substring(index, index2);
index = index2+1;
var index2 = enteredEmails.indexOf("\n", index+1);
//EOF
if(index2 == -1) {
results.value += ",";
results.value += enteredEmails.substring(index, enteredEmails.length);
break;
} else {
results.value += ",";
}
}
}
</script>
</head><body>
<form onsubmit="makeit();">
<textarea name="emails" id="emails" rows="10" cols="75"></textarea><br />
<input type="button" value="submit" onclick="makeit()">
</form>
<textarea id="results"></textarea>
</body></html>
Solution 3:
Ouch, don't use that complicated scripts. Strings have functions exactly for that purpose:
var input = document.getElementById("emails").value;
input = input.replace(/\r\n/g, "\n"); // I hate this
var emails = input.split("\n"); // make an Array
var output = emails.join(","); // should we use ", " instead?
Of course you could put everyhing in one line ;-)
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