Define
Go
var x []float64 // Slice
x:=65 // This will given a default type
var x: []float64={1,2,3}
var x [12]float14 // array
Rust
let x = 18
let mut x = 19
let x:i32=19
var x []float64 // Slice
x:=65 // This will given a default type
var x: []float64={1,2,3}
var x [12]float14 // array
let x = 18
let mut x = 19
let x:i32=19