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Thread: Word existence

  1. #1
    Spam Can Kill!!! Disk-t's Avatar
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    Word existence

    How do I check if a certain word exists in a text box? For example, if I set the word to be found to "word1", if the text box is "This is word1", and alert would come up saying that "word1" was found.

  2. #2
    SitePoint Wizard creole's Avatar
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    if (formname.elementname.value == "string")

    should do it. Someone please let me know if that is incorrect.
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  3. #3
    SitePoint Evangelist
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    I think that checks to see if the text in the textbox is identical to
    string.

    To see if the word exists inside a string, I think you'll need something like indexOf().

    Not sure about the syntax, but it's something like:

    Code:
    if (formname.elementname.value.indexOf("string") != -1) 
    {
    alert("string was found in textbox")
    }


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