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author | Rogan Creswick <creswick@gmail.com> | 2013-01-02 15:31:43 -0800 |
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committer | Rogan Creswick <creswick@gmail.com> | 2013-01-02 15:31:43 -0800 |
commit | 91c8d16838b39c7726f6c0a0fb333f5ba38d2494 (patch) | |
tree | 136df17525e5e62f3ddc5b7a6dc71ffd31e2aa42 /tools/addon-sdk-1.7/packages/api-utils/docs/environment.md | |
parent | f7b228c479bac8828e521a2826d7f57f150da877 (diff) |
updated addon-sdk to 1.12
Diffstat (limited to 'tools/addon-sdk-1.7/packages/api-utils/docs/environment.md')
-rw-r--r-- | tools/addon-sdk-1.7/packages/api-utils/docs/environment.md | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/tools/addon-sdk-1.7/packages/api-utils/docs/environment.md b/tools/addon-sdk-1.7/packages/api-utils/docs/environment.md deleted file mode 100644 index b5057a2..0000000 --- a/tools/addon-sdk-1.7/packages/api-utils/docs/environment.md +++ /dev/null @@ -1,43 +0,0 @@ -<!-- This Source Code Form is subject to the terms of the Mozilla Public - - License, v. 2.0. If a copy of the MPL was not distributed with this - - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> - -Module provides API to access, set and unset environment variables via exported -`env` object. - - var { env } = require('api-utils/environment'); - -You can get the value of an environment variable, by accessing property that -has name of desired variable: - - var PATH = env.PATH; - -You can check existence of an environment variable by checking if property with -such variable name exists: - - console.log('PATH' in env); // true - console.log('FOO' in env); // false - -You can set value of an environment variable by setting a property: - - env.FOO = 'foo'; - env.PATH += ':/my/path/' - -You can unset environment variable by deleting a property: - - delete env.FOO; - -## Limitations ## - -There is no way to enumerate existing environment variables, also `env` -won't have any enumerable properties: - - console.log(Object.keys(env)); // [] - -Environment variable will be unset, show up as non-existing if it's set -to `null`, `undefined` or `''`. - - env.FOO = null; - console.log('FOO' in env); // false - env.BAR = ''; - console.log(env.BAR); // undefined |