javascript add option element to select

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showing results for - "javascript add option element to select"
Giorgia
19 Jul 2019
1javascript add option/element to select:
2const newOpt = document.getElementById('option-input');
3let mySelect = document.getElementById('mySelect'); //Object not array
4const opts = Object.values(mySelect.options);
5const option = document.createElement('option');
6optValues = opts.map(opt => opt.value.toLowerCase());
7//Validate if option exists
8if(optValues.indexOf(newOpt.value.toLowerCase()) !== -1){
9  	newOpt.nextElementSibling.after("Category exists");
10   }else{
11   option.value = newOpt.value;
12    option.text = newOpt.value;
13    mySelect.add(option);
14    mySelect.value = option.value;
15   }
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