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node_modules/es-abstract/2024/FindViaPredicate.js

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+'use strict';
+
+var $TypeError = require('es-errors/type');
+var isInteger = require('math-intrinsics/isInteger');
+
+var Call = require('./Call');
+var Get = require('./Get');
+var ToBoolean = require('./ToBoolean');
+var IsCallable = require('./IsCallable');
+var ToString = require('./ToString');
+
+var isObject = require('../helpers/isObject');
+
+// https://262.ecma-international.org/15.0/#sec-findviapredicate
+
+module.exports = function FindViaPredicate(O, len, direction, predicate, thisArg) {
+	if (!isObject(O)) {
+		throw new $TypeError('Assertion failed: Type(O) is not Object');
+	}
+	if (!isInteger(len) || len < 0) {
+		throw new $TypeError('Assertion failed: len must be a non-negative integer');
+	}
+	if (direction !== 'ascending' && direction !== 'descending' && direction !== 'DESCENDING' && direction !== 'ASCENDING') {
+		throw new $TypeError('Assertion failed: direction must be ~ASCENDING~ or ~DESCENDING~');
+	}
+
+	if (!IsCallable(predicate)) {
+		throw new $TypeError('predicate must be callable'); // step 1
+	}
+
+	for ( // steps 2-4
+		var k = direction === 'ascending' || direction === 'ASCENDING' ? 0 : len - 1;
+		direction === 'ascending' || direction === 'ASCENDING' ? k < len : k >= 0;
+		k += 1
+	) {
+		var Pk = ToString(k); // step 4.a
+		var kValue = Get(O, Pk); // step 4.c
+		var testResult = Call(predicate, thisArg, [kValue, k, O]); // step 4.d
+		if (ToBoolean(testResult)) {
+			return { '[[Index]]': k, '[[Value]]': kValue }; // step 4.e
+		}
+	}
+	return { '[[Index]]': -1, '[[Value]]': void undefined }; // step 5
+};