The main difference between the variables declared with var and with let isOptions: Pick one correct answer from belowvar is confined to a particular function but let is notvar defines values based on conditions but let does notlet is confined to a particular function but var is notlet doesn’t let you change the value of the variable
Question
The main difference between the variables declared with var and with let isOptions: Pick one correct answer from belowvar is confined to a particular function but let is notvar defines values based on conditions but let does notlet is confined to a particular function but var is notlet doesn’t let you change the value of the variable
Solution
The correct answer is: let is confined to a particular function but var is not.
Here's why:
In JavaScript, both var and let are used to declare variables. The main difference between them lies in their scope.
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var: When you declare a variable using var, it is function-scoped. This means that if a variable is declared with var inside a function, it can only be accessed within that function. However, if it is declared outside any function, it becomes globally accessible throughout the code.
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let: On the other hand, when you declare a variable using let, it is block-scoped. This means that the variable can only be accessed within the block of code in which it is declared.
Therefore, the statement "let is confined to a particular function but var is not" is the correct answer.
Similar Questions
What does let mean? (please check all true answers)It’s the keyword to define a variable in the local scopeIt’s the keyword to define a variable with optionally initializing it to a valueIt’s the keyword to define a global variableIt’s the keyword to define a constant variableIt’s the keyword to define a variable that can be re-assign during the execution
Question 1Variables declared using 'let' can be reassigned.
Which of the following is not a valid way to declare a JavaScript variable?Optionsvar x;const x;variable x;let x;
Which of the following is not a valid way to declare a JavaScript variable?Optionsvariable x;let x;var x;const x;
Which of the following is true about let and const in terms of scope?**1 pointa) Both are globally scoped.b) Both are function-scoped.c) Both are block-scoped.d) let is block-scoped and const is function-scoped.
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