| 1 | 'use strict';
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| 2 |
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| 3 | const typeOf = v => ({}).toString.call(v).slice(8, -1);
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| 4 |
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| 5 | module.exports = {
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| 6 | typeOf,
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| 7 | throwIf: {
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| 8 | notBoolean(obj) {
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| 9 | for(const key in obj) {
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| 10 | if(![true, false].includes(obj[key])) {
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| 11 | throw new Error(`Property "${key}" should be Boolean type.`);
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| 12 | }
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| 13 | }
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| 14 | },
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| 15 | notAllowedLang(obj) {
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| 16 | for(const key in obj) {
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| 17 | const langs = ['ru', 'ua'];
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| 18 | if(!langs.includes(obj[key])) {
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| 19 | throw new Error(`Property "${key}" should be one of provided: ${langs.join(', ')}.`);
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| 20 | }
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| 21 | }
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| 22 | },
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| 23 | notDate(time) {
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| 24 | if(!(time instanceof Date)) {
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| 25 | throw new Error('Sorry. Only Date instances are supported.');
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| 26 | }
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| 27 | },
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| 28 | notNumber(obj) {
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| 29 | for(const key in obj) {
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| 30 | if(typeOf(obj[key]) !== 'Number' || isNaN(obj[key])) {
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| 31 | throw new Error(`Property "${key}" should be a number.`);
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| 32 | }
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| 33 | }
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| 34 | },
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| 35 | notNumberInRange(obj, from, to) {
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| 36 | this.notNumber(obj);
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| 37 | for(const key in obj) {
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| 38 | if(obj[key] < from || to < obj[key]) {
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| 39 | throw new Error(`Property "${key}" should be in ${from}..${to} range.`);
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| 40 | }
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| 41 | }
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| 42 | },
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| 43 | notEnumerableProperty(obj, props) {
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| 44 | const keys = Object.keys(obj);
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| 45 | for(const prop in props) {
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| 46 | if(!keys.includes(prop)) {
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| 47 | throw new Error(`Unknown setting property as "${prop}".`);
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| 48 | }
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| 49 | }
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| 50 | },
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| 51 | },
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| 52 | };
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