What are language constructs?

1.	What are language constructs?
Answer» PowerShell offers a number of language constructs that allow you to manage the flow of your script and let you make decisions about what it should do. A few of the language constructs have conditionals, switches, loops, and variables. Conditionals: This language construct is utilized to assess a conditional expression. If the conditional expression is true, a script block is accomplished: if ( $i -eq 1){ ## Do something}Else{ ## Do something} Switch: The switch STATEMENT lets you deliver a variable and a list of POTENTIAL values. If the value matches the variable, then its script block is completed.. switch ($i) { 0 { Write-Host “I is 0” } 1 { Write-Host “I is 0” } DEFAULT { Write-Host “I is 0” } } Loops: What while statement does is repeat a block of code as long as the below mentioned conditional expression is working: while ($i -eq 0) { ## do something} The do loop is identical to the while loop. The only distinction is PowerShell runs the do loop at the end of the loop. do { ## do something } while ($i -lt 0) When you employ a foreach loop, PowerShell REPEATS the code for every item cited in the script. $array = ( ‘item1’ , ‘item2’ , ‘item3’) foreach ($item in $array) {} Make use of a for loop to execute statements constantly till a condition is met. for ($i = 0; $i -lt 5; $i++) { $i }

Answer»

PowerShell offers a number of language constructs that allow you to manage the flow of your script and let you make decisions about what it should do. A few of the language constructs have conditionals, switches, loops, and variables.

Conditionals: This language construct is utilized to assess a conditional expression. If the conditional expression is true, a script block is accomplished:

if ( $i -eq 1){ ## Do something}Else{ ## Do something}

Switch: The switch STATEMENT lets you deliver a variable and a list of POTENTIAL values. If the value matches the variable, then its script block is completed..

switch ($i) { 0 { Write-Host “I is 0” } 1 { Write-Host “I is 0” } DEFAULT { Write-Host “I is 0” } }

Loops: What while statement does is repeat a block of code as long as the below mentioned conditional expression is working:

while ($i -eq 0) { ## do something}

The do loop is identical to the while loop. The only distinction is PowerShell runs the do loop at the end of the loop.

do { ## do something } while ($i -lt 0)

When you employ a foreach loop, PowerShell REPEATS the code for every item cited in the script.

$array = ( ‘item1’ , ‘item2’ , ‘item3’) foreach ($item in $array) {}

Make use of a for loop to execute statements constantly till a condition is met.

for ($i = 0; $i -lt 5; $i++) { $i }

What are language constructs?

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