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dc6e0c3591
This commits add two new methods to "Deno.core" namespace: "encode" and "decode". Those methods are bound in Rust to provide a) fast b) generally available of encoding and decoding UTF-8 strings. Both methods are now used in "cli/js/dispatch_json.ts".
40 lines
958 B
JavaScript
40 lines
958 B
JavaScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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function assertArrayEquals(a1, a2) {
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if (a1.length !== a2.length) throw Error("assert");
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for (const index in a1) {
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if (a1[index] !== a2[index]) {
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throw Error("assert");
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}
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}
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}
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function main() {
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// prettier-ignore
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const fixture1 = [
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0xf0, 0x9d, 0x93, 0xbd,
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0xf0, 0x9d, 0x93, 0xae,
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0xf0, 0x9d, 0x94, 0x81,
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0xf0, 0x9d, 0x93, 0xbd
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];
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// prettier-ignore
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const fixture2 = [
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72, 101, 108, 108,
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111, 32, 239, 191,
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189, 239, 191, 189,
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32, 87, 111, 114,
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108, 100
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];
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assertArrayEquals(Array.from(Deno.core.encode("𝓽𝓮𝔁𝓽")), fixture1);
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assertArrayEquals(
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Array.from(Deno.core.encode("Hello \udc12\ud834 World")),
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fixture2
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);
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assert(Deno.core.decode(new Uint8Array(fixture1)) === "𝓽𝓮𝔁𝓽");
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assert(Deno.core.decode(new Uint8Array(fixture2)) === "Hello <20><> World");
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}
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main();
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