deduplicate-array

Description

This package removes duplicate values (Type: string | number | boolean | null | undefined | object | array) from the array (sourceArray). This is case-sensitive and strictly typed by default, but can be optimised with opts.

Install

  npm i deduplicate-array

Usage

deduplicateArray(sourceArray, opts)

• sourceArray | datatype: array | required

• opts | datatype: object | optional

• opts.caseSensitive | datatype: boolean | optional | default: true

• opts.strictType | datatype: boolean | optional | default: true

Example 1: String with no options

  const deduplicateArray = require('deduplicate-array');

  const arr = ["A", "a", "b", "c", "d", "a", "d"];

  deduplicateArray(arr);

  //returns ["A", "a", "b", "c", "d"]

Example 2: String with option | caseSensitive: false

  const deduplicateArray = require('deduplicate-array');

  const arr = ["A", "a", "b", "c", "d", "a", "d"];
  const opts = { caseSensitive: false }

  deduplicateArray(arr, opts);

  //returns ["A", "b", "c", "d"]

Example 3: Number with no options

  const deduplicateArray = require('deduplicate-array');

  const arr = ["10", 10, "10"];

  deduplicateArray(arr);

  //returns ["10", 10]

Example 4: Number with option | strictType: false

  const deduplicateArray = require('deduplicate-array');

  const arr = ["10", 10, "10"];
  const opts = { strictType: false }

  deduplicateArray(arr, opts);

  //returns ["10"]

Example 5: Object with no options

  const deduplicateArray = require('deduplicate-array');

  const arr = [{name: "arun"}, {name: "Arun"}, {name: "arun"}];

  deduplicateArray(arr);

returns

[{name: "arun"}, {name: "Arun"}]

Example 6: Object with option | caseSensitive: false

  const deduplicateArray = require('deduplicate-array');

  const arr = [{name: "arun"}, {name: "Arun"}, {name: "arun"}];
  const opts = { caseSensitive: false }

  deduplicateArray(arr, opts);

returns

   [{name: "arun"}]

Example 7: Array with no option

  const deduplicateArray = require('deduplicate-array');

  const arr = [["arun", "John"], ["Arun", "john"], ["arun", "John"]];  

  deduplicateArray(arr);

returns

   [["arun", "John"], ["Arun", "john"]]

Example 8: Array with option | caseSensitive: false

  const deduplicateArray = require('deduplicate-array');

  const arr = [["arun", "John"], ["Arun", "john"], ["arun", "John"]];
  const opts = { caseSensitive: false }

  deduplicateArray(arr, opts);

returns

   [["arun", "John"]]

Example 9: Array with option | caseSensitive: false

  const deduplicateArray = require('deduplicate-array');

  const arr = [["arun", "10"], ["Arun", 10], ["arun", 10]];
  const opts = { caseSensitive: false }

  deduplicateArray(arr, opts);
  

returns

   [["arun", "10"], ["Arun", 10]]

Example 10: Array with option | caseSensitive: false | strictType: false

  const deduplicateArray = require('deduplicate-array');

  const arr = [["arun", "10"], ["Arun", 10], ["arun", 10]];
  const opts = { caseSensitive: false, strictType: false }

  deduplicateArray(arr, opts);
  

returns

   [["arun", "10"]]

Example 11: Boolean with no option

  const deduplicateArray = require('deduplicate-array');

  const arr =  [true, true, false, true, false];  

  deduplicateArray(arr); 
  
  // returns [true, false]

Example 12: Null with no option

  const deduplicateArray = require('deduplicate-array');

  const arr =  [null, true, false, null, false];  

  deduplicateArray(arr); 
  
  // returns [null, true, false]

Example 13: Undefined with no option

  const deduplicateArray = require('deduplicate-array');

  const arr =  [true, undefined, false, null, false];  

  deduplicateArray(arr); 
  
  // returns [true, undefined, false, null]