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HTML

              
                <div class="widget-wrap">
  <div id="book"></div>
  <h1>SIMPLE HTML JS PAGINATION</h1>
  
  <strong class="spaced">PAGINATION WITH URL STRING</strong>
  <div id="demoA"></div>
  
  <strong class="spaced">PAGINATION WITH JS FUNCTION</strong>
  <div id="demoB"></div>
  
  <!-- (X) VISIT CODE-BOXX -->
  <div id="code-boxx">
    Visit
    <a href="https://code-boxx.com/simple-pagination-javascript-html/"
       target="_blank">
      Code Boxx
    </a> for more details.
  </div>
</div>
              
            
!

CSS

              
                /* (A) PAGINATION */
paginate { display: flex; }
.paginate a {
  color: #000;
  background: #f2f2f2;
  padding: 8px 10px;
  margin: 2px;
  text-decoration: none;
  cursor: pointer;
}
.paginate a.current {
  color: #fff;
  background: #4486ff;
}
.paginate a:hover {
  color: #000;
  background: #ffe9e9;
}

/* (X) THE REST DOES NOT MATTER - COSMETICS */
/* PAGE & BODY */
strong.spaced {
  display: block;
  margin: 30px 0 20px 0;
}
* {
  font-family: arial, sans-serif;
  box-sizing: border-box;
}
body {
  display: flex;
  align-items: center; justify-content: center;
  min-height: 100vh;
  background-image: url(https://images.unsplash.com/photo-1554034483-04fda0d3507b?crop=entropy&cs=srgb&fm=jpg&ixid=MnwxNDU4OXwwfDF8cmFuZG9tfHx8fHx8fHx8MTY0NzAwOTc2NA&ixlib=rb-1.2.1&q=85);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  text-align: center;
}

/* WIDGET */
.widget-wrap {
  width: 400px;
  padding: 30px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.4);
}

/* SVG */
#book {
  width: 100%; height:120px;
  background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 576 512" width="100" xmlns="http://www.w3.org/2000/svg"><path d="M542.22 32.05c-54.8 3.11-163.72 14.43-230.96 55.59-4.64 2.84-7.27 7.89-7.27 13.17v363.87c0 11.55 12.63 18.85 23.28 13.49 69.18-34.82 169.23-44.32 218.7-46.92 16.89-.89 30.02-14.43 30.02-30.66V62.75c.01-17.71-15.35-31.74-33.77-30.7zM264.73 87.64C197.5 46.48 88.58 35.17 33.78 32.05 15.36 31.01 0 45.04 0 62.75V400.6c0 16.24 13.13 29.78 30.02 30.66 49.49 2.6 149.59 12.11 218.77 46.95 10.62 5.35 23.21-1.94 23.21-13.46V100.63c0-5.29-2.62-10.14-7.27-12.99z" /></svg>');
  background-repeat: no-repeat;
  background-position: center;
}

/* FOOTER */
#code-boxx {
  font-weight: 600;
  margin-top: 30px;
}
#code-boxx a {
  display: inline-block;
  padding: 5px;
  text-decoration: none;
  background: #b90a0a;
  color: #fff;
}
              
            
!

JS

              
                function paginator (instance) {
// target : html element to generate pagination.
// total : total number of pages.
// click : url string or function to call on click.
// current : (optional) current page, default 1.
// adj : (optional) num of adjacent pages beside "current page", default 2.
 
  // (A) INIT & SET DEFAULTS
  if (instance.current === undefined) {
    let param = new URLSearchParams(window.location.search);
    instance.current = param.has("pg") ? Number.parseInt(param.get("pg")) : 1;
  }
  if (instance.adj === undefined) { instance.adj = 2; }
  if (instance.adj <= 0) { instance.adj = 1; }
  if (instance.current <= 0) { instance.current = 1; }
  if (instance.current > instance.total) { instance.current = instance.total; }

  // (B) URL STRING ONLY - DEAL WITH QUERY STRING & APPEND PG=N
  const jsmode = typeof instance.click == "function";
  if (jsmode == false) {
    if (instance.click.indexOf("?") == -1) { instance.click += "?pg="; }
    else { instance.click += "&pg="; }
  }
 
  // (C) HTML PAGINATION WRAPPER
  instance.target.innerHTML = "";
  instance.target.classList.add("paginate");
 
  // (D) DRAW PAGINATION SQUARES
  // (D1) HELPER FUNCTION TO DRAW PAGINATION SQUARE
  const square = (txt, pg, css) => {
    let el = document.createElement("a");
    el.innerHTML = txt;
    if (css) { el.className = css; }
    if (jsmode) { el.onclick = () => { instance.click(pg); }; }
    else { el.href = instance.click + pg; }
    instance.target.appendChild(el);
  };

  // (D2) BACK TO FIRST PAGE (DRAW ONLY IF SUFFICIENT SQUARES)
  if (instance.current - instance.adj > 1) { square("&#10218;", 1, "first"); }

  // (D3) ADJACENT SQUARES BEFORE CURRENT PAGE
  let temp;
  if (instance.current > 1) {
    temp = instance.current - instance.adj;
    if (temp<=0) { temp = 1; }
    for (let i=temp; i<instance.current; i++) { square(i, i); }
  }
 
  // (D4) CURRENT PAGE
  square(instance.current, instance.current, "current");

   // (D5) ADJACENT SQUARES AFTER CURRENT PAGE
  if (instance.current < instance.total) {
    temp = instance.current + instance.adj;
    if (temp > instance.total) { temp = instance.total; }
    for (let i=instance.current+1; i<=temp; i++) { square(i, i); }
  }
 
  // (D6) SKIP TO LAST PAGE (DRAW ONLY IF SUFFICIENT SQUARES)
  if (instance.current <= instance.total - instance.adj - 1) {
    square("&#10219;", instance.total, "last");
  }
}

// (E) PAGINATION HANDLER
function load (pg) {
  /* (E1) AJAX FETCH PAGE
  fetch ("http://site.com/?pg="+pg)
  .then(res => res.text())
  .then((txt) => {
    document.getElementById("WRAP").innerHTML = txt;
  }); */
 
  // (E2) REDRAW PAGINATION
  paginator({
    target : document.getElementById("demoB"),
    total : 10,
    current : pg,
    click : load
  });
}

// (F) ATTACH PAGINATION
window.addEventListener("load", () => {
  // (F1) PAGINATION WITH URL STRING
  paginator({
    target : document.getElementById("demoA"),
    total : 10,
    click : "page.html"
  });
  
  // (F2) PAGINATION WITH JS FUNCTION
  load(1);
});
              
            
!
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