### area/demo
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
"github.com/pterm/pterm/putils"
)
func main() {
// Print an informational message using PTerm's Info printer.
// This message will stay in place while the area updates.
pterm.Info.Println("The previous text will stay in place, while the area updates.")
// Print two new lines as spacer.
pterm.Print("\n\n")
// Start the Area printer from PTerm's DefaultArea, with the Center option.
// The Area printer allows us to update a specific area of the console output.
// The returned 'area' object is used to control the area updates.
area, _ := pterm.DefaultArea.WithCenter().Start()
// Loop 10 times to update the area with the current time.
for i := 0; i < 10; i++ {
// Get the current time, format it as "15:04:05" (hour:minute:second), and convert it to a string.
// Then, create a BigText from the time string using PTerm's DefaultBigText and putils NewLettersFromString.
// The Srender() function is used to save the BigText as a string.
str, _ := pterm.DefaultBigText.WithLetters(putils.LettersFromString(time.Now().Format("15:04:05"))).Srender()
// Update the Area contents with the current time string.
area.Update(str)
// Sleep for a second before the next update.
time.Sleep(time.Second)
}
// Stop the Area printer after all updates are done.
area.Stop()
}
```
### area/center
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
)
func main() {
// Start a new default area in the center of the terminal.
// The Start() function returns the created area and an error.
area, _ := pterm.DefaultArea.WithCenter().Start()
// Loop 5 times to simulate a dynamic update.
for i := 0; i < 5; i++ {
// Update the content of the area with the current count.
// The Sprintf function is used to format the string.
area.Update(pterm.Sprintf("Current count: %d\nAreas can update their content dynamically!", i))
// Pause for a second to simulate a time-consuming task.
time.Sleep(time.Second)
}
// Stop the area after all updates are done.
area.Stop()
}
```
### area/default
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
)
func main() {
// Start a new default area and get a reference to it.
// The second return value is an error which is ignored here.
area, _ := pterm.DefaultArea.Start()
// Loop 5 times
for i := 0; i < 5; i++ {
// Update the content of the area dynamically.
// Here we're just displaying the current count.
area.Update(pterm.Sprintf("Current count: %d\nAreas can update their content dynamically!", i))
// Pause for a second before the next update.
time.Sleep(time.Second)
}
// Stop the area after all updates are done.
// This will clean up and free resources used by the area.
area.Stop()
}
```
### area/dynamic-chart
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
)
func main() {
// Start a new fullscreen centered area.
// This area will be used to display the bar chart.
area, _ := pterm.DefaultArea.WithFullscreen().WithCenter().Start()
// Ensure the area stops updating when we're done.
defer area.Stop()
// Loop to update the bar chart 10 times.
for i := 0; i < 10; i++ {
// Create a new bar chart with dynamic bars.
// The bars will change based on the current iteration.
barchart := pterm.DefaultBarChart.WithBars(dynamicBars(i))
// Render the bar chart to a string.
// This string will be used to update the area.
content, _ := barchart.Srender()
// Update the area with the new bar chart.
area.Update(content)
// Wait for half a second before the next update.
time.Sleep(500 * time.Millisecond)
}
}
// dynamicBars generates a set of bars for the bar chart.
// The bars will change based on the current iteration.
func dynamicBars(i int) pterm.Bars {
return pterm.Bars{
{Label: "A", Value: 10}, // A static bar.
{Label: "B", Value: 20 * i}, // A bar that grows with each iteration.
{Label: "C", Value: 30}, // Another static bar.
{Label: "D", Value: 40 + i}, // A bar that grows slowly with each iteration.
}
}
```
### area/fullscreen
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
)
func main() {
// Start a new fullscreen area. This will return an area instance and an error.
// The underscore (_) is used to ignore the error.
area, _ := pterm.DefaultArea.WithFullscreen().Start()
// Loop 5 times to update the area content.
for i := 0; i < 5; i++ {
// Update the content of the area with the current count.
// The Sprintf function is used to format the string.
area.Update(pterm.Sprintf("Current count: %d\nAreas can update their content dynamically!", i))
// Pause for a second before the next update.
time.Sleep(time.Second)
}
// Stop the area after all updates are done.
area.Stop()
}
```
### area/fullscreen-center
SHOW SOURCE
```go
package main
import (
"time"
"github.com/pterm/pterm"
)
func main() {
// Initialize a new PTerm area with fullscreen and center options
// The Start() function returns the created area and an error (ignored here)
area, _ := pterm.DefaultArea.WithFullscreen().WithCenter().Start()
// Loop 5 times to demonstrate dynamic content update
for i := 0; i < 5; i++ {
// Update the content of the area with the current count
// The Sprintf function is used to format the string with the count
area.Update(pterm.Sprintf("Current count: %d\nAreas can update their content dynamically!", i))
// Pause for a second
time.Sleep(time.Second)
}
// Stop the area after all updates are done
// This will clear the area and return the terminal to its normal state
area.Stop()
}
```