// Copyright 2019 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Test notation: "scientific" with formatToParts. const nf = Intl.NumberFormat("en", {notation: "scientific"}); let parts = nf.formatToParts(123.456); // [{type: "integer", value: "1"}, {type: "decimal", value: "."}, // {type: "fraction", value: "235"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentInteger", value: "2"}] assertEquals("integer", parts[0].type); assertEquals("1", parts[0].value); assertEquals("decimal", parts[1].type); assertEquals(".", parts[1].value); assertEquals("fraction", parts[2].type); assertEquals("235", parts[2].value); assertEquals("exponentSeparator", parts[3].type); assertEquals("E", parts[3].value); assertEquals("exponentInteger", parts[4].type); assertEquals("2", parts[4].value); assertEquals(5, parts.length); parts = nf.formatToParts(-123.456); // [{type: "minusSign", value: "-"},i // {type: "integer", value: "1"}, {type: "decimal", value: "."}, // {type: "fraction", value: "235"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentInteger", value: "2"}] assertEquals("minusSign", parts[0].type); assertEquals("-", parts[0].value); assertEquals("integer", parts[1].type); assertEquals("1", parts[1].value); assertEquals("decimal", parts[2].type); assertEquals(".", parts[2].value); assertEquals("fraction", parts[3].type); assertEquals("235", parts[3].value); assertEquals("exponentSeparator", parts[4].type); assertEquals("E", parts[4].value); assertEquals("exponentInteger", parts[5].type); assertEquals("2", parts[5].value); assertEquals(6, parts.length); parts = nf.formatToParts(12345678901234567890); // [{type: "integer", value: "1"}, {type: "decimal", value: "."}, // {type: "fraction", value: "235"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentInteger", value: "19"}] assertEquals("integer", parts[0].type); assertEquals("1", parts[0].value); assertEquals("decimal", parts[1].type); assertEquals(".", parts[1].value); assertEquals("fraction", parts[2].type); assertEquals("235", parts[2].value); assertEquals("exponentSeparator", parts[3].type); assertEquals("E", parts[3].value); assertEquals("exponentInteger", parts[4].type); assertEquals("19", parts[4].value); assertEquals(5, parts.length); parts = nf.formatToParts(-12345678901234567890); // [{type: "minusSign", value: "-"}, // {type: "integer", value: "1"}, {type: "decimal", value: "."}, // {type: "fraction", value: "235"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentInteger", value: "19"}] assertEquals("minusSign", parts[0].type); assertEquals("-", parts[0].value); assertEquals("integer", parts[1].type); assertEquals("1", parts[1].value); assertEquals("decimal", parts[2].type); assertEquals(".", parts[2].value); assertEquals("fraction", parts[3].type); assertEquals("235", parts[3].value); assertEquals("exponentSeparator", parts[4].type); assertEquals("E", parts[4].value); assertEquals("exponentInteger", parts[5].type); assertEquals("19", parts[5].value); assertEquals(6, parts.length); parts = nf.formatToParts(0.000000000000123456); // [{type: "integer", value: "1"}, {type: "decimal", value: "."}, // {type: "fraction", value: "235"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentMinusSign", value: "-"}, {type: "exponentInteger", value: "13"}] assertEquals("integer", parts[0].type); assertEquals("1", parts[0].value); assertEquals("decimal", parts[1].type); assertEquals(".", parts[1].value); assertEquals("fraction", parts[2].type); assertEquals("235", parts[2].value); assertEquals("exponentSeparator", parts[3].type); assertEquals("E", parts[3].value); assertEquals("exponentMinusSign", parts[4].type); assertEquals("-", parts[4].value); assertEquals("exponentInteger", parts[5].type); assertEquals("13", parts[5].value); assertEquals(6, parts.length); parts = nf.formatToParts(-0.000000000000123456); // [{type: "minusSign", value: "-"}, {type: "integer", value: "1"}, // {type: "decimal", value: "."}, {type: "fraction", value: "235"}, // {type: "exponentSeparator", value: "E"}, // {type: "exponentMinusSign", value: "-"}, {type: "exponentInteger", value: "13"}] assertEquals("minusSign", parts[0].type); assertEquals("-", parts[0].value); assertEquals("integer", parts[1].type); assertEquals("1", parts[1].value); assertEquals("decimal", parts[2].type); assertEquals(".", parts[2].value); assertEquals("fraction", parts[3].type); assertEquals("235", parts[3].value); assertEquals("exponentSeparator", parts[4].type); assertEquals("E", parts[4].value); assertEquals("exponentMinusSign", parts[5].type); assertEquals("-", parts[5].value); assertEquals("exponentInteger", parts[6].type); assertEquals("13", parts[6].value); assertEquals(7, parts.length); parts = nf.formatToParts(0); // [{type: "integer", value: "0"}, {type: "exponentSeparator", value: "E"}, // {type: "exponentInteger", value: "0"}] assertEquals("integer", parts[0].type); assertEquals("0", parts[0].value); assertEquals("exponentSeparator", parts[1].type); assertEquals("E", parts[1].value); assertEquals("exponentInteger", parts[2].type); assertEquals("0", parts[2].value); assertEquals(3, parts.length); parts = nf.formatToParts(-0); // [{type: "minusSign", value: "-"}, {type: "integer", value: "0"}, // {type: "exponentSeparator", value: "E"}, {type: "exponentInteger", value: "0"}] assertEquals("minusSign", parts[0].type); assertEquals("-", parts[0].value); assertEquals("integer", parts[1].type); assertEquals("0", parts[1].value); assertEquals("exponentSeparator", parts[2].type); assertEquals("E", parts[2].value); assertEquals("exponentInteger", parts[3].type); assertEquals("0", parts[3].value); assertEquals(4, parts.length); parts = nf.formatToParts(Infinity); // [{type: "infinity", value: "∞"}] assertEquals("infinity", parts[0].type); assertEquals("∞", parts[0].value); assertEquals(1, parts.length); parts = nf.formatToParts(-Infinity); // [{type: "minusSign", value: "-"}, {type: "infinity", value: "∞"}] assertEquals("minusSign", parts[0].type); assertEquals("-", parts[0].value); assertEquals("infinity", parts[1].type); assertEquals("∞", parts[1].value); assertEquals(2, parts.length); parts = nf.formatToParts(NaN); // [{type: "nan", value: "NaN"}] assertEquals("nan", parts[0].type); assertEquals("NaN", parts[0].value); assertEquals(1, parts.length);