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🌟 A thread of tips, lessons, gotchas, syntactical conventions, semantics, structures and common errors regarding JavaScript.
Follow to be enlightened!
#100DaysofCode
#Javascript
#CodeNewbies
Follow to be enlightened!
#100DaysofCode
#Javascript
#CodeNewbies
🌟 1: All programming languages works with data, and there are 7 built in data types in #JavaScript:
• null
• undefined
• boolean
• number
• string
• object
• symbol—added in ES6!
They are also called primitive types
#100DaysOfCode
#CodeNewbies
• null
• undefined
• boolean
• number
• string
• object
• symbol—added in ES6!
They are also called primitive types
#100DaysOfCode
#CodeNewbies
🌟 2: #null essentially means "no data", empty, nada. #undefined means data has not been explicitly defined or declared. #boolean evaluates to either true or false. #numbers are digits between 0-9, #strings are characters enclosed within double quotes
#100DaysOfCode
#CodeNewbie
#100DaysOfCode
#CodeNewbie
For this year's #30DayMapChallenge i will be trying to create 30 maps on #Berlin just using #OpenData and #OpenSource software. For day 01 - Polygons, a map of all of Berlin's street trees. #QGIS Source: github.com/sebastian-meie… 
BTW @citylabberlin has built an #FOSS platform for visualising and managing joint efforts for watering trees during dry periods in the summer: giessdenkiez.de Source code: github.com/technologiesti…
Day 2 of #30DayMapChallenge : Lines. Bike lanes in Berlin provided by @FixMyBerlin's API, showing their HappyBikeIndex. To explore the data set more in depth check out: fixmyberlin.de/zustand Code: github.com/sebastian-meie…
