JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr>
        <td>Row 1</td>
        <td><div id="div1"> <input type="text" name="one"/> </div></td>
    </tr>
    <tr>
        <td>Row 1</td>
        <td><div id="div2"> <input type="text" name="two" /> </div></td>
    </tr>
</table>

<input type="submit" onclick="validateInput()" value="submit" />

JavaScript

var tblElement = document.getElementById('mytable'),
        txtElements = tblElement.getElementsByTagName('input');
    
    for(var i=0; i<txtElements.length; i++){
        if(!isValid) break;
        
        var item = txtElements[i],
            val = item.value;
        alert (val);
        console.log(item);
        // do your validation here
        isValid = (val >= 100);
    }
    
    if(isValid){
        // do something or do nothing, form will be submitted
        alert('All good, form will be submitted');
    } else {
        // show some kind of error to the user
        alert('Some values are lower than 100');
    }
    
    return isValid;
}

    return isValid;
}