HTML and CSS: The HTML file (index.html) defines the structure of a simple calculator interface. It includes input fields for entering expressions and a result section for displaying the calculated results. The CSS in styles.css provides styling to make the calculator visually appealing.
JavaScript Functions:
clearDisplay(): Clears the input display, presumably for starting a new calculation.
deleteLastCharacter(): Deletes the last character from the input display, allowing for correcting mistakes in the input.
toggleSign(): Toggles the sign of the current input (positive/negative).
appendToDisplay(value): Appends a value to the input display, which is useful for entering numbers and operators.
calculate(): Attempts to evaluate the expression in the input display using the eval function. It then displays the result or an error message if the expression is invalid.
HTML and CSS: The HTML file (index.html) defines the structure of a simple calculator interface. It includes input fields for entering expressions and a result section for displaying the calculated results. The CSS in styles.css provides styling to make the calculator visually appealing.
JavaScript Functions:
clearDisplay(): Clears the input display, presumably for starting a new calculation. deleteLastCharacter(): Deletes the last character from the input display, allowing for correcting mistakes in the input. toggleSign(): Toggles the sign of the current input (positive/negative). appendToDisplay(value): Appends a value to the input display, which is useful for entering numbers and operators. calculate(): Attempts to evaluate the expression in the input display using the eval function. It then displays the result or an error message if the expression is invalid.