absolute — GTM Variable Template for Number

VARIABLES › NUMBER

absolute EXTENDED Number

Direct (.tpl) Apply (.tpl)

Returns the absolute (non-negative) value of a number.

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Examples

Positive stays positive▶ Try

INPUT

Number: 42

OUTPUT

42

Negative to positive▶ Try

INPUT

Number: -42

OUTPUT

42

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GTM Configuration

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absolute

Read-Only Try Live

Number

💾 The number to calculate the absolute value for.

Supported formats:
  ✓ Number

Input Setup

Input Function (optional)

⚙️ Optional pre-processing function applied to the input before internal logic (e.g., parse string to number, apply mathematical operations). Internal transformations such as absolute value calculation will still apply afterward.

Result Handling

Output Function (optional)

⚙️ Optional function to apply to the result before returning it (e.g., num => num + ' units', val => val.toFixed(2) for decimal formatting). Useful for chaining transformations on the output.

Number number

💡 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.

absolute()

+ Chain another variable

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Related Variables

Same category: Number

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

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Under the Hood

📜 View Implementation Code

/**
 * Returns the absolute value of the provided input.
 * 
 * @param {number} data.num - The number to calculate the absolute value for.
 * @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 num before calculation.
 * 
 * @returns {number} The absolute value of the input number.
 *
 * @framework ggLowCodeGTMKit
 */
const Math = require('Math');
const absolute = function(num) {
	return Math.abs(num);
};
const safeFunction = fn => typeof fn === 'function' ? fn : x => x;
const out = safeFunction(data.out);
// ===============================================================================
// absolute - Direct mode
// ===============================================================================
const applyCast = (castFn, value) => safeFunction(castFn)(value);
const num = applyCast(data.pre, data.num);
return out(absolute(num));
// ===============================================================================
// absolute() – Apply Mode
// ===============================================================================
/*
return function(num) {
   return out(absolute(num));
};
*/

🧪 View Test Scenarios (9 tests)

✅ '[example] Positive stays positive'
✅ '[example] Negative to positive'
✅ Zero - should return 0
✅ Negative decimal - should return positive decimal
✅ String negative number - should convert and return positive value
✅ Null input - should return 0
✅ Undefined input - should return NaN
✅ Empty string - should return 0
✅ Array with single string number - should convert and return positive value