JSFiddle - React, Tailwind, and code Playground

HTML

<input id="meta[152][value]" type="text" value="ssss" />

JavaScript

function ConvertValue(id)
{
    var test = id.replace(/[[]/g,'\\[');
    return "#" + test.replace(/]/g,'\\]');
    
}

$(document).click(function(){
    var ff = ConvertValue("meta[152][value]");
    alert($(ff).val());
});