Giter Site home page Giter Site logo

Comments (1)

FixTestRepeat avatar FixTestRepeat commented on August 17, 2024

this statement :

"The expression T(v) converts the value v to the type T."

is already correct as it is in my view.

What I found confusing is the code example, which doesn't appear to relate to this concept at all.

package main

import (
	"fmt"
	"math"
)

func main() {
	var x, y int = 3, 4
	var f float64 = math.Sqrt(float64(x*x + y*y))
	var z uint = uint(f)
	fmt.Println(x, y, z)
}

Instead, I would suggest a much more trivial code alternative demonstrates the effect more clearly by converting from float64 to int (and the loss of precision that causes)

package main

import (
	"fmt"
)

func main() {
	var x1, x2 float64 = 1.123, 2.345
	var y1, y2 int = int(x1), int(x2)  // Key Concept 
	
	fmt.Println(x1, x2)
	fmt.Println(y1, y2)
}

// returns:
// 1.123 2.345
// 1 2

from tour.

Related Issues (20)

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.