toInteger — GTM Variable Template for Number

VARIABLES › NUMBER

toInteger CORE Number

Direct (.tpl) Apply (.tpl)

Converts the input into an integer. Returns NaN if invalid.

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When to Use This

Number Operations

Arithmetic, rounding, clamping, and mathematical transformations on numeric values.

Type Conversion

Safely convert between data types — strings, numbers, booleans, arrays, objects.

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Examples

String to integer▶ Try

INPUT

Value To Convert: 123

OUTPUT

123

Decimal rounded to integer▶ Try

INPUT

Value To Convert: 45.89

OUTPUT

46

Invalid returns NaN▶ Try

INPUT

Value To Convert: not a number

OUTPUT

""

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GTM Configuration

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

toInteger

Read-Only Try Live

Value To Convert

💾 The value to be converted into an integer.

Supported formats:
  ✓ Any

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.

Value To Convert any

💡 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.

toInteger()

+ Chain another variable

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Related Variables

Same category: Number

→ absolute → addValues → calculateDiffRatio → calculateRatioPercentage → ceil → clamp → classifyByThreshold → countDigits → divide → floor → max → min → multiply → parseFloatValue → parseIntValue → squareRoot → subtractValues → toFixed

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Under the Hood

📜 View Implementation Code

/**
* Converts the input into an integer.
* 
* @param {any} data.src - The value to be converted into an integer.
* @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 conversion.
* 
* @returns {number} The converted integer value, or NaN if the input cannot be converted.
*
* @framework ggLowCodeGTMKit
*/
const makeInteger = require('makeInteger');

const toInteger = function(input) {
  if (input === "0") return 0; 
   return makeInteger(input) || 0/0;
};

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

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

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

🧪 View Test Scenarios (5 tests)

✅ Valid integer - returns the integer
✅ '[example] String to integer'
✅ '[example] Decimal rounded to integer'
✅ Negative number - converts to negative integer
✅ '[example] Invalid returns NaN'