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JavaScript

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HTML

              
                <div class="min-h-screen flex items-center justify-center">
  <div class="container flex flex-wrap justify-around">
    <div class="w-1/3 bg-gray-200 border border-gray-400 rounded-xl text-center p-8" x-data="left()">
      <h2 class="text-3xl text-semibold">Component left</h2>
      <p class="text-lg">Write something into the input field and store it into the "store".</p>
      <input type="text" x-model="value" placeholder="Write something..." class="border-2 border-gray-300 rounded-lg w-full text-xl px-4 py-2 my-4" />
      <button type="button" class="text-xl leading-none bg-teal-600 rounded-xl text-white font-bold px-6 py-3 hover:bg-black" @click="store()">STORE</button>

    </div>
    <div class="w-1/3 bg-gray-200 border border-gray-400 rounded-xl text-center p-8" x-data="right()" x-init="init()">
      <h2 class="text-3xl text-semibold">Component right</h2>
      <p class="text-lg">If something is in the store you can fetch it.</p>
      <div class="text-xl font-bold border-2 border-gray-300 rounded-xl px-6 py-3 my-4" x-text="value"></div>
      <button type="button" class="text-xl leading-none bg-teal-600 rounded-lg text-white font-bold  px-6 py-3 hover:bg-black" @click="fetch()">FETCH</button>
    </div>
  </div>
</div>
              
            
!

CSS

              
                .font-sans {
  font-family: Raleway, Helvetica, Arial, sans-serif !important;
}

              
            
!

JS

              
                function left() {
  return {
    value: "",
    store: function () {
      window.store.data.value = this.value;
      window.store.save();
      console.info("Written to the store:", this.value);
    }
  };
}

function right() {
  return {
    value: "Nothing stored...",
    fetch: function () {
      this.value = window.store.data.value;
      console.info("Value fetched from the store:", this.value);
    },
    init: function () {
      this.value = window.store.data.value;
    }
  };
}

window.store = {
  data: {
    value: "Nothing stored..."
  },
  load: function () {
    var storage = localStorage.getItem("alpinejsstore");
    if (storage !== null) {
      this.data = JSON.parse(storage);
    }
  },
  save: function () {
    localStorage.setItem("alpinejsstore", JSON.stringify(this.data));
  }
};

window.store.load();

              
            
!
999px

Console