JSFiddle - React, Tailwind, and code Playground

JavaScript

var strings = ['a', 'b', 'c', 'd'];
document.write('initial data: ' + strings);
var index = 0;
var badData = 'c';
for(index = 0; index < strings.length; index++)
{
    if(strings[index] == badData)
    {
        strings.splice(index, 1);                 
    }        
}

document.write('<br>final data: '+ strings);