45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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const isString = require('../predicate/isString.js');
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const eq = require('../util/eq.js');
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const toInteger = require('../util/toInteger.js');
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function includes(source, target, fromIndex, guard) {
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if (source == null) {
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return false;
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}
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if (guard || !fromIndex) {
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fromIndex = 0;
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}
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else {
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fromIndex = toInteger.toInteger(fromIndex);
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}
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if (isString.isString(source)) {
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if (fromIndex > source.length || target instanceof RegExp) {
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return false;
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}
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if (fromIndex < 0) {
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fromIndex = Math.max(0, source.length + fromIndex);
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}
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return source.includes(target, fromIndex);
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}
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if (Array.isArray(source)) {
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return source.includes(target, fromIndex);
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}
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const keys = Object.keys(source);
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if (fromIndex < 0) {
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fromIndex = Math.max(0, keys.length + fromIndex);
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}
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for (let i = fromIndex; i < keys.length; i++) {
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const value = Reflect.get(source, keys[i]);
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if (eq.eq(value, target)) {
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return true;
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}
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}
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return false;
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}
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exports.includes = includes;
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