JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://raw.github.com/ericmbarnard/KoGrid/master/KoGrid.css">
<script src="http://cloud.github.com/downloads/SteveSanderson/knockout/knockout-2.1.0.js"></script>
<script src="https://api.azaleos.com/Scripts/underscore-min.js"></script>
<script src="https://raw.github.com/kamranayub/UnderscoreKO/master/underscore-ko.js"></script>
<script src="https://raw.github.com/ericmbarnard/KoGrid/skogrid-merge/KoGrid.debug.js"></script>
<div>          
    <input data-bind="value: filter, valueUpdate: 'afterkeydown'" placeholder="Search..." />
                              
    <div style="width: 500px; height: 500px;" data-bind="koGrid: { data: filteredItems }"></div>
</div>

CSS

/******** Grid Global ********/
.kgLabel {
    display: block;
    float: left;
    font-weight: bold;
    padding-right: 5px;
}
/******** Grid ********/
.kgGrid {
    background-color: rgb(253, 253, 253);
}

/******** Header ********/
.kgTopPanel {
    background-color: rgb(241, 241, 241);
    overflow: hidden;
}
.kgHeaderContainer {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgb(229, 229, 229);
    font-weight: bold;
}
.kgHeaderScroller {
    position: absolute;
}
.kgHeaderCell {
    position: absolute;
    background-color: rgb(241, 241, 241); 
    padding: 0;
    cursor: pointer;
    border-right: 1px solid rgb(241, 241, 241);
}
/******** Viewport ********/
.kgViewport{
    background-color: rgb(255, 255, 255);
    overflow: auto;
}

.kgCanvas{
    position: relative;
}

/******** Rows ********/
.kgRow {
    border-bottom: 1px solid rgb(229, 229, 229);
    cursor: pointer;
}
.kgRow.even {
    background-color: rgb(253, 253, 253);
}
.kgRow.odd {
    background-color: rgb(249, 249, 249);
}
.kgRow.kgSelected {
    background-color: rgb(255, 255, 204);
}
.kgRow.kgCanSelect {
    cursor: pointer;
}

/******** Cells ********/
.kgCell {
    overflow: hidden; 
    position: absolute;
    padding: 0;
    display: inline;
}
.kgRowIndexCell{ 
    text-align: center;
}
.kgSelectionCell {
    
}
.kgSelectionCell input[type="checkbox"] {
    margin-left: auto; 
    margin-right: auto;
    margin-top: 7px;
    height: 15px;
    width: 15px;
}

/******** Header Sorting ********/
.kgSortImg{
    height: 9px;
    width: 7px;
}

.kgNoSort {
    cursor:default;
}

/******** Header Filtering ********/
.kgFilterBtn {
    cursor: pointer;
    height: 16px;
    width: 16px;
    position: absolute;
    margin: auto;
    top: 0; bottom: 0; left: 0; right: 0;
}
.kgFilterBtn.openBtn {
    background-image:...

JavaScript

$(document).ready(function () {
    
    function vm() {
        var self = this;
        self.myObsArray = ko.observableArray([
            { firstName: ko.observable("John"), lastName: ko.observable("Doe") },
            { firstName: ko.observable("Jane"), lastName: ko.observable("Doe") }
        ]);
                
        self.filter = ko.observable("");
        self.filteredItems = ko.computed(function() {
            var filter = self.filter().toLowerCase();
            if (!filter) {
                return self.myObsArray();
            } else {
                return self.myObsArray.filter(function(item) {
                    return item.firstName().toLowerCase().indexOf(filter) != -1;
                });
            }
        });            
    };
    ko.applyBindings(new vm());
});