Filtering specific column in Angular Material table in angular 5

Question

In Angular material official website it is mentioned that filterPredicate: ((data: T, filter: string) => boolean) will filter data based on specific field. But don\'t gettin

Answer 1

If you are looking for a range predicate to filter out a range of values on one attribute:

applyRangePredicate() {
  this.datasource.filterPredicate = (data:
    {id: string}, filter: string) => {
      let searchlist = JSON.parse(filter);
      var found = false
      searchlist.forEach(item => {
        if (data.id.indexOf(item) !== -1)
          found = true 
      })
      return found
    }
  }

then assign a json string to stream filtered data to the UI

this.applyRangePredicate()    
this.datasource.filter = JSON.stringify(string[])