Software developer and content creator. Author of the upcoming book, A Modern JavaScript Primer. Preorder a copy here https://naftalimurgor.gumroad.com/l/modern-javascript-primer
Note: thevar keyword is deprecated as of ES6(ES2015). It's quite rare to see usage of var in mordern code bases due to the behavior that var introduces. Usage of var to declare and initialize variables still works because of back-ward compatibility of JavaScript. However, when working on pre-ES2015 code, trying to migrate to let and const will be too much effort for little to no benefit.
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Note: the
var
keyword is deprecated as of ES6(ES2015). It's quite rare to see usage ofvar
in mordern code bases due to the behavior thatvar
introduces. Usage ofvar
to declare and initialize variables still works because of back-ward compatibility of JavaScript. However, when working on pre-ES2015 code, trying to migrate to let and const will be too much effort for little to no benefit.