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javascript html text input onkey press up onkeyup on enter

   var password=document.getElementById("login-password")
  password.onkeyup=function(e) {
  if (e.keyCode==13) {login()}
  }

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onsen ui example splitter side menu swipe

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go golang get disk usage free space remain info

package main import ( "fmt" "syscall" ) func main() { fmt.Println(DiskUsage("./")) } func DiskUsage(path string) uint64 { fs := syscall.Statfs_t{} err := syscall.Statfs(path, &fs) if err != nil { return 0 } return fs.Bfree * uint64(fs.Bsize) } //All space   = fs.Blocks * uint64(fs.Bsize) //Free space = fs.Bfree * uint64(fs.Bsize) //Used space= fs.All - disk.Free
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