Javascript-loops Flashcards

1
Q

What is the purpose of a loop?

A

The purpose of loops is to repeat an action some number of times.

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2
Q

What is the purpose of a condition expression in a loop?

A

The purpose is to instructs the code to run a specified number of times.

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3
Q

What does “iteration” mean in the context of loops?

A

the same procedure is repeated multiple times.

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4
Q

When does the condition expression of a while loop get evaluated?

A

The condition is evaluated before executing the statement.

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5
Q

When does the initialization expression of a for loop get evaluated?

A

the first time when the loop runs.

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6
Q

When does the condition expression of a for loop get evaluated?

A

everytime the loop is run.

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7
Q

When does the final expression of a for loop get evaluated?

A

everytime the loop has run the statement in the curly braces.

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8
Q

Besides a return statement, which exits its entire function block, which keyword exits a loop before its condition expression evaluates to false?

A

break.

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9
Q

What does the ++ increment operator do?

A

The increment operator (++) increments (adds one to) its operand and returns a value.

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10
Q

How do you iterate through the keys of an object?

A

for/in Statement.

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