javascript - jQuery: If number above 3 digits - Stack Overflow

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How can I see if a SPAN contains a number over 3 digits? I tried the below, but it didn't work.

    if ($('.pointScore .score').val() > 999 ) {    
        alert("Over 999 point");    
    }

Thank you in advance.

How can I see if a SPAN contains a number over 3 digits? I tried the below, but it didn't work.

    if ($('.pointScore .score').val() > 999 ) {    
        alert("Over 999 point");    
    }

Thank you in advance.

• javascript
• jquery
• if-statement

Share Improve this question Follow asked May 4, 2011 at 9:39 curly_bracketscurly_brackets 5,5981515 gold badges6262 silver badges103103 bronze badges 4

• 1 Most likely .val() returns it as a string. try .val() > "999" – user176060 Commented May 4, 2011 at 9:40
• Don't you need a cast to Integer? I'm guessing the span value is string. PerfectlyNormal's suggestion is dangerous BTW. You shouldn't pare strings with greater or less. – Vladislav Zorov Commented May 4, 2011 at 9:41
• @PerfectlyNormal, @Vladislav: No, JavaScript does that kind of thing for you. Even gets it right, much of the time. Best to use parseInt, but possible not to. – T.J. Crowder Commented May 4, 2011 at 9:52
• @T.J. That's why I changed "can't pare" to "shouldn't pare" before I posted the ment. – Vladislav Zorov Commented May 4, 2011 at 10:56

Add a ment  | 

3 Answers 3

Sorted by: Reset to default 7

You noticed that a span doesn't have a value, but there is another potential problem with the code. The text is a string, so you will be paring a string to a number. As that can have unexpected results, it should be avoided.

The easiest way is to simply check the length of the string:

if ($('.pointScore .score').text().length > 3) {    
    alert("Over 999 point");
}

You can also parse the string into a number:

if (parseInt($('.pointScore .score').text(), 10) > 999) {    
    alert("Over 999 point");
}

DOH!

I just needed to change val() to text()...

Sorry...

    if ($('.pointScore .score').text() > 999 ) {    
        alert("Over 999 point");    
    }

alternatively, you could use the length property

if ($('.pointScore .score').html().length > 3) {    
        alert("more than 3 digits");    
    }

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