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Using Javascript/jQuery, I want compare to see if a selected value from a Select list contains a value from an array.

As you will see below, the array values are only part of the Select option value. I need to compare to see if the selected option value contains a value of 'myArr'.

My current code is:

var myArr = ["10:00", "10:20", "10:40"];

    //Currently not working

$('select').on('change', function(){
    if($.inArray($(this).text(), myArr)){
     console.log("YES in array")
     }else{
    console.log("NOT in array")
    }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
     <option value="43987">9:00 AM - 21 Available</option>
     <option value="43988">9:20 AM - 33 Available</option>
     <option value="43997">9:40 AM - 40 Available</option>     
     <option value="43990">10:00 AM - 10 Available</option>
     <option value="43991">10:20 AM - 6 Available</option>
     <option value="43992">10:40 AM - 22 Available</option>
     <option value="43993">11:00 AM - 80 Available</option>
    </select>

EDIT: I updated the post to not look at the value but if the 'text' is contained in the array. I don't have an option ot use the value because we post process that value as an ID to do some matching. This is why I need to know if the option 'text' is contained in the array.

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  • 1
    The values of the options do not match those in the array. inArray does not consider partial matches. It only considers exact matches. Commented Jul 29, 2020 at 17:54
  • 1
    The easiest solution would be to actually put value="9:00" attributes on your options. Commented Jul 29, 2020 at 17:54
  • @Taplar, right now I don't have that option. The values are the way they are needing. I am updating my question because a quanityte might be part of the "Available." Commented Jul 29, 2020 at 17:59

5 Answers 5

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2 

var myArr = ["10:00", "10:20", "10:40"];

$('select').on('change', function() {
  const time = this.value.split(' ')[0];
  
  if($.inArray(time, myArr) > -1) {
    console.log('In Array');
  } else {
    console.log('Not In Array');
  }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
  <option>9:00 AM - Available</option>
  <option>9:20 AM - Available</option>
  <option>9:40 AM - Available</option>
  <option>10:00 AM - Available</option>
  <option>10:20 AM - Available</option>
  <option>10:40 AM - Available</option>
  <option>11:00 AM - Available</option>
</select>

If you do not want to change the value, then grab the selected option, string off the leading time, and use that in your inArray call.

Edit: You actually don't need the option. Just the value.

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3 Comments

Works great, great solution. Simple. Thank you. Of course the split().
So, this works if the option does not have a 'value=' property. I updated my question to add a 'value=' property with various IDs. I actually need to compare the text. When I tried using the $(this).text().split(' ' )[0]; That did not work. Is there anyway to compare the text value with the array value?
That would be my previous version that used var $option = $('option:selected', this); var time = $option.text().split(' ')[0]; @ClosDesign
0

You didn't have correct value attribute that would be an exact match with those that are in array. So simply add value attribute for each options. I also used js includes() method of the array to check exactly what you tried, but with jQuery

var myArr = ["10:00", "10:20", "10:40"];

    //Currently not working

$('select').on('change', function(){
    if(myArr.includes($(this).val())){
     console.log("YES in array")
     }else{
    console.log("NOT in array")
    }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
     <option value="9:00">9:00 AM - Available</option>
     <option value="9:20">9:20 AM - Available</option>
     <option value="9:40">9:40 AM - Available</option>     
     <option value="10:00">10:00 AM - Available</option>
     <option value="10:20">10:20 AM - Available</option>
     <option value="10:40">10:40 AM - Available</option>
     <option value="11:00">11:00 AM - Available</option>
    </select>

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3 Comments

My apologies, I updated the Post, the value is not possible because we do some post processing based on an ID that we populate with the value. I need to know if the 'text' in the option is contained in the array.
Then yeah there is an alternative way to get the selected value which was used in @Taplar answer
So I tried getting the value, but I updated my question and added values to the ID, I ended up testing @Taplar's example, which worked when I did not have a 'value=' property on the option values, but once I added the 'value=' property, Taplar's solution does not work. So I tried the jQuery .text() instead. But that returned False on all selections.
0

just try to use method includes(). Link

var myArr = ["10:00", "10:20", "10:40"];

$('select').on('change', function(){

    if(myArr.includes($(this).val())){
     console.log("YES in array")
     }else{
    console.log("NOT in array")
    }
    
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
     <option value="9:00">9:00 AM - Available</option>
     <option value="9:20">9:20 AM - Available</option>
     <option value="9:40">9:40 AM - Available</option>     
     <option value="10:00">10:00 AM - Available</option>
     <option value="10:20">10:20 AM - Available</option>
     <option value="10:40">10:40 AM - Available</option>
     <option value="11:00">11:00 AM - Available</option>
    </select>

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0

Please see my solution!

var myArr = ["10:00 AM - 10 Available", "10:20 AM - 6 Available", "10:40"];

    //Currently not working

$('select').on('change', function(){
    var optionSelected = $(this).find("option:selected");
    var textSelected   = optionSelected.text();

    if(myArr.includes(textSelected)){
     console.log("YES in array")
     }else{
    console.log("NOT in array")
    }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
     <option value="43987">9:00 AM - 21 Available</option>
     <option value="43988">9:20 AM - 33 Available</option>
     <option value="43997">9:40 AM - 40 Available</option>     
     <option value="43990">10:00 AM - 10 Available</option>
     <option value="43991">10:20 AM - 6 Available</option>
     <option value="43992">10:40 AM - 22 Available</option>
     <option value="43993">11:00 AM - 80 Available</option>
    </select>

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0

how about split the value into an array of words first. then use the includes method

var myArr = ["10:00", "10:20", "10:40"];
$('select').on('change', function(){
let inArray = false
$(this).val().split(" ").forEach((element) => {
     if(myArr.includes(element)){
     inArray = true
    }
  });  
  if(inArray){
  console.log("YES in array")
  }else{
  console.log("NOT in array")
  }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<select>
     <option>9:00 AM - Available</option>
     <option>9:20 AM - Available</option>
     <option>9:40 AM - Available</option>     
     <option>10:00 AM - Available</option>
     <option>10:20 AM - Available</option>
     <option>10:40 AM - Available</option>
     <option>11:00 AM - Available</option>
    </select>

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