html table with column filters code example

Example 1: html table filter by all columns

function myFunction() {
  var input, filter, table, tr, td, i;
  input = document.getElementById("myInput");
  filter = input.value.toUpperCase();
  table = document.getElementById("myTable");
  var rows = table.getElementsByTagName("tr");
  for (i = 0; i < rows.length; i++) {
    var cells = rows[i].getElementsByTagName("td");
    var j;
    var rowContainsFilter = false;
    for (j = 0; j < cells.length; j++) {
      if (cells[j]) {
        if (cells[j].innerHTML.toUpperCase().indexOf(filter) > -1) {
          rowContainsFilter = true;
          continue;
        }
      }
    }

    if (! rowContainsFilter) {
      rows[i].style.display = "none";
    } else {
      rows[i].style.display = "";
    }
  }
}

Example 2: filter table search

new Vue({
  el: '#demo',

  data: {
    sortKey: 'name',
    reverse: false,
    searchName: '',
    searchOperator: '',
    searchAge: '',
    columns: ['name', 'age'],
    newUser: {},
    search: "",
    name: "",
    age: "",

    users: [
      { name: 'John', age: 50 },
      { name: 'Jane', age: 22 },
      { name: 'Paul', age: 34 },
      { name: 'Kate', age: 15 },
      { name: 'Amanda', age: 65 },
      { name: 'Steve', age: 38 },
      { name: 'Keith', age: 21 },
      { name: 'Don', age: 50 },
      { name: 'Susan', age: 21 }
    ]
  },
  methods: {
    sortBy: function (sortKey) {
      this.reverse = (this.sortKey == sortKey) ? !this.reverse : false;

      this.sortKey = sortKey;
    }, 
    filterByName : function(user) {
      // no search, don't filter : 
      if (this.searchName.length === 0) {
        return true;
      }

      return  (user.name.toLowerCase().indexOf(this.searchName.toLowerCase()) > -1);
    }, 
    filterByAge : function (user) {
      // no operator selected or no age typed, don't filter : 
      if (this.searchOperator.length === 0 || this.age.length === 0) {
        return true;
      }

      if (this.searchOperator === '>') {
        return (user.age > this.age); 
      } else  if (this.searchOperator === '<') {
        return (user.age < this.age);
      }      
    }, 
    orderBy : function (userA, userB) {
      let condition = (userA[this.sortKey] > userB[this.sortKey]);
      if (this.reverse) {
        return !condition;
      } else {
        return condition;
      }
    }
  },
  computed: {
    filteredPersons: function () {
      return this.users
      .filter(this.filterByName)
      .filter(this.filterByAge)
      .sort(this.orderBy);
    }
  },  
});