includesNone — GTM Variable Template for Array

VARIABLES › ARRAY

includesNone CORE Array

Direct (.tpl) Apply (.tpl) Add to GTM

Checks if none of the specified terms are found in the source array or string.

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When to Use This

Array Processing

Iterate, filter, map, and reshape arrays of items for batch data operations.

Comparison

Test equality, containment, and ordering between values.

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Examples

No terms found▶ Try

INPUT

Source Content: The quick brown fox jumps over the lazy dog
Search Terms: ["cat", "mouse", "bird"]

OUTPUT

true

Term found returns false▶ Try

INPUT

Source Content: The quick brown fox jumps over the lazy dog
Search Terms: ["cat", "fox", "bird"]

OUTPUT

false

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Live Sandbox

This is what you'll see when you open this variable in Google Tag Manager. Hover the icons for details.

includesNone

Read-Only Try Live

Source Content

💾 The value to search within.

Supported formats:
  ✓ String: "hello world"
  ✓ Array: ["a", "b", "c"]
  ✓ Comma-separated string: "a,b,c"
  ✓ JSON-stringified array or object: '["a","b"]'

Search Terms

🔍 Search terms (one or more) to find within the data.

Supported formats:
  ✓ String: "hello world"
  ✓ Array: ["a", "b", "c"]
  ✓ Comma-separated string: "a,b,c"

Input Setup

Input Function (optional)

⚙️ Optional pre-processing function applied to the input before internal logic (e.g., convert object to string, normalize case). Internal transformations such as case handling will still apply afterward.

Result Handling

Output Function (optional)

⚙️ Optional function to apply to the result before returning it (e.g., str => str + ' €', val => val !== undefined for boolean conversion). Useful for chaining transformations on the output.

Source Content array

💡 Type any text to see the result update live

🎯 Using special value — click input to type instead

Test with:

Falsy undefined null "" empty 0 false NaN

Truthy true 42 "hello" {} empty [] empty {a:1} [1,2,3]

Search Terms array

🔗 Result Handling — Chain Variables

Chain apply-mode variables to the output. Each variable receives the result of the previous one.

includesNone()

+ Chain another variable

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Related Variables

Same category: Array

→ chunk → compact → dropItems → dropItemsRight → every → filterArray → find → findIndexByCallback → findIndexByRegex → flatten → head → includesAll → includesAny → join → last → lastIndexOf → map → reduce → reduceRight → reverse → selectFromArray → some → sort → tail → takeItems → takeItemsRight → uniq → wrapInArray → ⚡ ARRAY › From Indexed Values → ⚡ ARRAY › From Values

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Under the Hood

📜 View Implementation Code

/**
 * Checks if the source contains **none** of the provided search terms.
 *
 * @param {*} data.src - The data to search within (string, number, object, etc.).
 * @param {Array<string>|string} data.tms - Term, array or comma-separated string of terms to search for.
 * @param {string|Function} [data.out] - Output handler: function to transform result or string with format.
 *
 * Direct-mode specific parameters:
 * @param {Function} [data.pre] - Optional function to transform `src` before searching.
 *
 * @returns {boolean} True if none of the terms are found, false otherwise.
 *
 * @framework ggLowCodeGTMKit
 */
const includesNone = function(searchData, searchTerms) {
  if (searchData == null || searchTerms == null) {
    return false;
  }
  const searchString = searchData.toString();
  const safeSplit = value => typeof value === 'string' ? value.split(',') : value;
  searchTerms = safeSplit(searchTerms);
  return searchTerms.every(term => term != null && searchString.indexOf(term) === -1);
};
const safeFunction = fn => typeof fn === 'function' ? fn : x => x;
const out = safeFunction(data.out);
// ===============================================================================
// includesNone - Direct mode
// ===============================================================================
const applyCast = (castFn, value) => safeFunction(castFn)(value);
const searchData = applyCast(data.pre, data.src);
return out(includesNone(searchData, data.tms));

// ===============================================================================
// includesNone(...) – Apply Mode
// ===============================================================================
/*
  return function(searchData, searchTerms) {
  searchTerms = data.rp1 ? searchTerms : data.tms;
  return out(includesNone(searchData, searchTerms));
};
*/

🧪 View Test Scenarios (10 tests)

✅ '[example] No terms found'
✅ '[example] Term found returns false'
✅ String with all matching terms - should return false
✅ Comma-separated terms with no matches - should return true
✅ Null source - should return false
✅ Null terms - should return false
✅ Number source with no matching terms - should return true
✅ Number source with matching terms - should return false
✅ Empty string with search terms - should return true
✅ JSON string with no matching terms - should return true