| Path : /var/www/html/infraai.ai/frontend/node_modules/is-string/test/ |
|
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/is-string/test/index.js |
'use strict';
var test = require('tape');
var isString = require('../');
var hasToStringTag = require('has-tostringtag/shams')();
test('not Strings', function (t) {
// @ts-expect-error
t.notOk(isString(), 'undefined is not String');
t.notOk(isString(null), 'null is not String');
t.notOk(isString(false), 'false is not String');
t.notOk(isString(true), 'true is not String');
t.notOk(isString([]), 'array is not String');
t.notOk(isString({}), 'object is not String');
t.notOk(isString(function () {}), 'function is not String');
t.notOk(isString(/a/g), 'regex literal is not String');
t.notOk(isString(new RegExp('a', 'g')), 'regex object is not String');
t.notOk(isString(new Date()), 'new Date() is not String');
t.notOk(isString(42), 'number is not String');
t.notOk(isString(Object(42)), 'number object is not String');
t.notOk(isString(NaN), 'NaN is not String');
t.notOk(isString(Infinity), 'Infinity is not String');
t.end();
});
test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
/** @type {{ toString(): unknown; valueOf(): unknown; [Symbol.toStringTag]?: string; }} */
var fakeString = {
toString: function () { return '7'; },
valueOf: function () { return '42'; }
};
fakeString[Symbol.toStringTag] = 'String';
t.notOk(isString(fakeString), 'fake String with @@toStringTag "String" is not String');
t.end();
});
test('Strings', function (t) {
t.ok(isString('foo'), 'string primitive is String');
t.ok(isString(Object('foo')), 'string object is String');
t.end();
});