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							- 'use strict';
 
- var $TypeError = require('es-errors/type');
 
- var StringPad = require('./StringPad');
 
- var ToLength = require('./ToLength');
 
- var ToString = require('./ToString');
 
- // https://262.ecma-international.org/15.0/#sec-stringpaddingbuiltinsimpl
 
- module.exports = function StringPaddingBuiltinsImpl(O, maxLength, fillString, placement) {
 
- 	if (placement !== 'start' && placement !== 'end' && placement !== 'START' && placement !== 'END') {
 
- 		throw new $TypeError('Assertion failed: `placement` must be ~START~ or ~END~');
 
- 	}
 
- 	var S = ToString(O); // step 1
 
- 	var intMaxLength = ToLength(maxLength); // step 2
 
- 	var stringLength = S.length; // step 3
 
- 	if (intMaxLength <= stringLength) { return S; } // step 4
 
- 	var filler = typeof fillString === 'undefined' ? ' ' : ToString(fillString); // steps 5-6
 
- 	return StringPad(S, intMaxLength, filler, placement); // step 7
 
- };
 
 
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