JavaScript Long Flashcard

Front

JavaScript is primarily used to make web pages:

Back

Interactive

Front

Which keyword declares a variable whose value can be reassigned? Options: const, let, var, fixed

Back

var

Front

In JavaScript, what symbol is used for single-line comments?

Back

//

Front

Which function is used to show a dialog box with a message? Options: alert(), popup(), console.log(), display()

Back

alert()

Front

Which keyword defines a function in JavaScript? Options: function, define, block, method

Back

function

Front

Arrays in JavaScript are used to:

Back

Store multiple values in one variable

Front

Which operator assigns a value to a variable? Options: ==, =, ===, =>

Back

=

Front

Which string property returns the number of characters?

Back

length

Front

Which array method adds a new element to the end? Options: push(), pop(), shift(), splice()

Back

push()

Front

Which event occurs when a user clicks an element?

Back

onclick