Variables
Variables need to be declared within the LMC first. See Add-Ins > Variables > + New variable.
Also, they can only be used readonly, i.e. you can not modify them from within the script.
Variable values can be used using the object context.vars:
/**
* @param {Config} config
* @param {Context} context
* Do not edit this comment or parameter types. Required for code suggestions
*/
exports.main = function (config, context) {
if (context.vars.deviceName) { // checks if the variable is set
context.setScalarByOid("1.2.1" /* /Setup/Name */, config.vars.deviceName);
}
};
The value of a variable that does not exist is undefined.
The value of an empty variable is "".