countWordsInString — GTM Variable Template for String

VARIABLES › STRING

countWordsInString CORE String

Direct (.tpl) Apply (.tpl)

Counts the number of non-empty words in a given string. Note: text should be sanitized first to remove HTML tags and normalize whitespace for accurate word counting.

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When to Use This

String Manipulation

Transform, clean, and normalize text data for consistent downstream processing.

Filtering

Select or exclude items from collections based on criteria or predicates.

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Examples

Simple sentence▶ Try

INPUT

Sanitized Text: hello world test

OUTPUT

3

Multiple spaces between words▶ Try

INPUT

Sanitized Text: hello world test

OUTPUT

3

Non-string input returns undefined▶ Try

INPUT

Sanitized Text: 12345

OUTPUT

undefined

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GTM Configuration

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countWordsInString

Read-Only Try Live

Sanitized Text

💾 The sanitized text string to analyze for word counting.

Supported formats:
  ✓ String

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.

Sanitized Text string

💡 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]

🔗 Result Handling — Chain Variables

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

countWordsInString()

+ Chain another variable

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Related Variables

Same category: String

→ assignParamsToString → charAt → concatenateValues → endsWith → extract → extractFirstSegment → extractNumber → fromBase64 → indexOf → left → matchAll → matchRegex → omitParamsFromString → padEnd → padStart → pickParamsFromString → replaceAll → replaceAllWithRegex → replaceFirst → right → safeSplit → sanitizeTextAndRemoveHtml → sanitizeTextLite → search → slice → split → startsWith → test → toBase64 → toCamelCase → toJsonString → toKebabCase → toLocaleLowerCase → toLocaleUpperCase → toLowerCase → toNumber → toSnakeCase → toStartCase → toString → toStringRepresentation → toUpperCase → toUpperFirst → trim → trimEnd → trimStart → truncate

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Under the Hood

📜 View Implementation Code

/**
 * Counts the number of non-empty words in a given string. Note: Text should be sanitized first to remove HTML tags and normalize whitespace for accurate word counting.
 * 
 * @param {string} data.src - The sanitized text string to analyze.
 * @param {Function|string} [data.out] - Optional output handler: function to transform result or string with format.
 *
 * Direct-mode specific parameters:
 * @param {Function} [data.pre] - Optional pre-processor function to transform src before counting.
 * 
 * @returns {number|undefined} The number of words in the string, or undefined if input is not a string.
 *
 * @framework ggLowCodeGTMKit
 */
const countWordsInString = function(sanitizedText) {
    if (typeof sanitizedText !== 'string') { return undefined; }
    
    return sanitizedText.split(' ').filter(word => word.length > 0).length;
};

const safeFunction = fn => typeof fn === 'function' ? fn : x => x;
const out = safeFunction(data.out);

// ===============================================================================
// countWordsInString - Direct mode
// ===============================================================================
const applyCast = (castFn, value) => safeFunction(castFn)(value);
const value = applyCast(data.pre, data.src);
return out(countWordsInString(value));

// ===============================================================================
// countWordsInString() – Apply Mode
// ===============================================================================
/*
return function(value) {
   return out(countWordsInString(value));
};
*/

🧪 View Test Scenarios (8 tests)

✅ '[example] Simple sentence'
✅ String with single word - should return 1
✅ Empty string - should return 0
✅ String with only spaces - should return 0
✅ '[example] Multiple spaces between words'
✅ String with leading and trailing spaces - should return 2
✅ '[example] Non-string input returns undefined'
✅ Non-string input (array) - should return undefined