Approach to Create JavaScript Calculator
- HTML Table creates a grid structure and <input type=”button”> adds the buttons on the grid.
- <input type=”text”> adds an input text field to display the expression.
- When the user clicks on the button, the button value will display on the input field.
- When the equal button ( = ) is clicked, solve() function is called and evaluates the expression, and displays the result on the input text field.
- The button “c” is used to clear the text input field. When the button is clicked, the clr() function is called, and it resets the value to empty.
- The solve() function uses Math.js evaluate() function to evaluate the mathematical expression.
JavaScript Calculator
JavaScript Calculator performs mathematical operations like – Addition, Subtraction, Multiplication, Division, etc.
HTML, CSS, and JavaScript are used to design the JavaScript Calculator. HTML creates basic structure of the calculator. CSS properties applies styles on the calculator and JavaScript adds the calculation functionality. Also, Math.js evaluates the calculations.
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