is-exists
v1.1.0
Published
Check whether a functions, variables, modules, files, properties exists or not.
Downloads
2
Readme
is-exists
Check whether a global functions, global variables, modules, files, properties, user environments exists or not.
Installation
npm install is-exists
Example Usage
let {
function_exists,
variable_exists,
file_exists,
module_exists,
property_exists,
env_var_exists,
} = require("is-exists");
if (function_exists("isArray")) {
//do the true statement code
}
if (variable_exists("isArray")) {
//do the true statement code
}
(async () => {
if (await file_exists("./src/index.js")) {
//do the true statement code
}
})();
if (module_exists("mocha")) {
//do the true statement code
}
$obj = {
hello: "hi",
};
if (property_exists("hello", $obj)) {
//do the true statement code
}
if (env_var_exists("PROMPT")) {
//do the true statement code
}
Contributing
You can follow the contributing guide listed here
API
function_exists
Parameters
- 0: function name: string
Check whether global function is exist or not.
variable_exists
Parameters
- 0: variable name: string
Check whether global variable is exist or not.
file_exists
Parameters
- 0: filepath: string
Check whether file is exist or not.
file_exists
will start from root project directory location.
module_exists
Parameters
- 0: module name: string
Check whether module is exist or not.
property_exists
Parameters
- 0: property name: string
- 1: defined object: object
Check whether property is exist or not.
env_var_exists
Parameters
- 0: property name: string
Check whether user environment is exist or not.
License
is-exists was licensed under MIT License