development/deno
development/deno
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This commit is contained in:
J2P 2018-09-07 17:35:19 +09:00 committed by Ryan Dahl
parent 9101fd1493
commit d814949896
1 changed files with 21 additions and 5 deletions
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26
js/os.ts
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@ -123,6 +123,14 @@ export function mkdirSync(path: string, mode = 0o777): void {
send(builder, fbs.Any.MkdirSync, msg);
}
/**
* Read the file.
* import { readFileSync } from "deno";
*
* const decoder = new TextDecoder("utf-8");
* const data = readFileSync("hello.txt");
* console.log(decoder.decode(data));
*/
export function readFileSync(filename: string): Uint8Array {
/* Ideally we could write
const res = send({
@ -180,12 +188,12 @@ function setEnv(key: string, value: string): void {
* the process. The environment object will only accept `string`s or `number`s
* as values.
* import { env } from "deno";
* const env = deno.env();
* console.log(env.SHELL)
* env.TEST_VAR = "HELLO";
*
* const newEnv = deno.env();
* console.log(env.TEST_VAR == newEnv.TEST_VAR);
* const myEnv = env();
* console.log(myEnv.SHELL);
* myEnv.TEST_VAR = "HELLO";
* const newEnv = env();
* console.log(myEnv.TEST_VAR == newEnv.TEST_VAR);
*/
export function env(): { [index: string]: string } {
/* Ideally we could write
@ -313,6 +321,14 @@ function statSyncInner(filename: string, lstat: boolean): FileInfo {
return new FileInfo(res);
}
/**
* Write a new file.
* import { writeFileSync } from "deno";
*
* const encoder = new TextEncoder("utf-8");
* const data = encoder.encode("Hello world\n");
* writeFileSync("hello.txt", data);
*/
export function writeFileSync(
filename: string,
data: Uint8Array,