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tomwalters5678

Hi guys, I would like to know how to basically retrieve a certain number of characters from the string value inside of an array. So for example.


var news = new Array();
news[0] = \"Today a big thing happened that was really big, seriously big, I mean huge!\"; 
news[1] = \"Today I saw a man. He was a man, not a women, an man, as in he was male, not female, defiantly male.\"; 
news[2] = \"Today police discovered what appeared to be an oversized crunchy bar, just lying in the street - unopened.\"; 

for(var i; i < 2; i++)
{
       document.write(news[i]);
}

Where I have the "document.write" is where I would like there to be a amount of characters output limit, so for news[0] it could just be - "Today a big thing happened".

How would I go about doing this, and is it even possible with JavaScript? Or am I better off going with XML?

Thanks

-Tom

akeenlabs

That functionality is not build-in, but I'm not sure it's build into XML either. Maybe I'm a little confused but a function like this would work:


function max(theString, maxCharacters){
  if(theString.length <= maxCharacters){
    return theString;
  } else {
    return theString.substring(0, maxCharacters);
  }
}

So instead of just doing document.write() you'd do document.write(max(news[i], 10)). Is that what you were asking for?

Stack

Im not 100% sure what your asking for but from what it sounds like your interested in extracting a substring.


<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">
<head>
    <title>Test</title>
    <script type=\"text/javascript\">
var news = new Array();
news[0] = \"Today a big thing happened that was really big, seriously big, I mean huge!\";
news[1] = \"Today I saw a man. He was a man, not a women, an man, as in he was male, not female, defiantly male.\";
news[2] = \"Today police discovered what appeared to be an oversized crunchy bar, just lying in the street - unopened.\";

for (var i = 0; i < 3; i++){
       document.write(news[i].substring(0,10) + \"<br />\");
}
    </script>
</head>
<body>
</body>
</html>

the above code would write all characters in each item from the 0 character (first character) up to (but not including) the 10th character of the strings. (PS: in a for loop that you will be incrimenting always include a value for the variable or it will throw an error and increase the number by 1 to go through an array. so if the array is 3 entries (0,1, and 2) write either i < 3 or i <= 2.
Is this what you were lookin for?

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