Understanding a this._(STRING) call in node RED
javascript, node-red, node.js, this
Solution
This is the function to pull in the translated version of a label.
`"switch.rules.btwn"` is the key to look up the version of the label in the right language for the user.
See the Internationalisation section of the Node-RED documentation for more details.
Problem
I'm trying to understand existing code of the Switch node in node-red to deal with and make my own node correctly. I'm stuck with these lines : ``` var operators = [ {v:"eq",t:"=="}, {v:"neq",t:"!="}, {v:"lt",t:"<"}, {v:"lte",t:"<="}, {v:"gt",t:">"}, {v:"gte",t:">="}, {v:"btwn",t:this._("switch.rules.btwn")}, {v:"cont",t:this._("switch.rules.cont")}, {v:"regex",t:this._("switch.rules.regex")}, {v:"true",t:this._("switch.rules.true")}, {v:"false",t:this._("switch.rules.false")}, {v:"null",t:this._("switch.rules.null")}, {v:"nnull",t:this._("switch.rules.nnull")}, {v:"else",t:this._("switch.rules.else")} ]; ``` Especially with the `this._("switch.rules.smthg")`. How it will work ? Sometime in the code, i will see this call, but i'm not able to find where is it stored, and so make my own, like `this._(myawesomenode.myawesomesection.myawesomepropertie)` EDIT Thanks to your comments, i've seen it's for internationalisation. Suppposing i have this catalog : ``` { "and": { "list": { "key": "THE DATA I WANT" } } } ``` How can i have my data ? I've tried something like `this._(and.list.key)` without result.