FCC JS Calculator

Developer
Victoria
Size
4,996 Kb
Views
14,168
  1. FCC JS Calculator Previews
  2. FCC JS Calculator HTML Codes
  3. FCC JS Calculator CSS Codes
  4. FCC JS Calculator JS Codes

How do I make an fcc js calculator?

What is a fcc js calculator? How do you make a fcc js calculator? This script and codes were developed by Victoria on 02 December 2022, Friday.

FCC JS Calculator Previews
IQ Test

FCC JS Calculator - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>FCC JS Calculator</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="calc"></div> <script src='http://cdnjs.cloudflare.com/ajax/libs/react/0.14.7/react.min.js'></script>
<script src='http://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.6.1/lodash.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

FCC JS Calculator - Script Codes CSS Codes

body { background-color: sandybrown;
}
.buttons { width: 100%; display: flex; flex-flow: row wrap; justify-content: center;
}
.button { flex-basis: 40px; line-height: 40px; background-color: mediumturquoise; border: 2px solid cadetblue; border-radius: 10%; text-align: center; margin: 2px 2px; font-size: 20px; cursor: pointer;
}
.display { width: 90%; margin: 5px; height: 20px; text-align: right; font-size: 14px;
}
.calculator { margin: auto; width: 200px; border: 1px solid midnightblue; border-radius: 5%; padding: 10px; background-color: cornflowerblue;
}

FCC JS Calculator - Script Codes JS Codes

'use strict';
var isNum = function isNum(s) {	return !isNaN(Number(s));
};
var EvalTools = {	convertKeys: function convertKeys(keys) {	var isNegativeNum = function isNegativeNum(s) {	return isNum(s) && Number(s) < 0;	};	var isDot = function isDot(s) {	return s === '.';	};	var isMinus = function isMinus(s) {	return s === '-';	};	var errors = [];	var res = keys.reduce(function (acc, k, i) {	if (!acc.length) return [k];	var prev = _.last(acc);	if (isNum(k)) {	if (isNum(prev)) {	return acc.slice(0, acc.length - 1).concat([prev + k]);	} else {	if (isMinus(prev)) {	var prevPrev = _.last(acc.slice(0, acc.length - 1));	if (isNum(prevPrev)) {	return acc.concat([k]);	} else {	if (isNegativeNum(k)) {	errors.push({ error: "can't have two successor minuses", index: i });	}	return acc.slice(0, acc.length - 1).concat([prev + k]);	}	} else {	return acc.concat([k]);	}	}	} else if (isDot(k)) {	if (isNum(prev)) {	return acc.slice(0, acc.length - 1).concat([prev + k]);	} else if (isDot(prev)) {	errors.push({ error: "can't have two successive dots", index: i });	return acc.concat([k]);	} else {	errors.push({ error: "can't have successive dot and operator (.%, .+ etc)", index: i });	return acc.concat([k]);	}	} else {	if (isNum(prev)) {	return acc.concat([k]);	} else {	errors.push({ error: "can't have two 'operations' as successors, i.e. `--`, `+-`, `+.`", index: i });	return acc.concat([k]);	}	}	}, []);	return { errors: errors, keys: res };	},	intToPost: function intToPost(exp) {	var priority = {	'*': 1,	'/': 1,	'+': 2,	'-': 2,	'%': 2	};	var operatorsStack = [];	var postfix = [];	exp.forEach(function (value) {	if (isNum(value)) {	postfix.push(value);	} else {	if (operatorsStack.length === 0 || priority[value] <= priority[_.last(operatorsStack)]) {	operatorsStack.push(value);	} else {	postfix = postfix.concat(_.reverse(operatorsStack));	operatorsStack = [value];	}	}	});	return postfix.concat(_.reverse(operatorsStack));	},	evaluate: function evaluate(exp) {	// [2, 3, +] [2, 3, ]	var operators = {	'*': function _(a, b) {	return a * b;	},	'/': function _(a, b) {	return a / b;	},	'+': function _(a, b) {	return a + b;	},	'-': function _(a, b) {	return a - b;	},	'%': function _(a, b) {	return a * b / 100;	}	};	var stack = [];	exp.forEach(function (value) {	if (isNum(value)) {	stack.push(Number(value));	} else {	var a = stack[stack.length - 2];	var b = stack[stack.length - 1];	stack = stack.slice(0, stack.length - 2);	stack.push(operators[value](a, b));	}	});	return stack[0];	}
};
var validate = function validate(exp, nextValue) {	if (isNum(nextValue)) {	return exp.concat([nextValue]);	} else {	var convertExp = EvalTools.convertKeys(exp.concat([nextValue, 1]));	if (convertExp.errors.length > 0) {	console.warn(convertExp.errors);	return exp;	} else {	return exp.concat([nextValue]);	}	}
};
var Calculator = React.createClass({	displayName: 'Calculator',	getInitialState: function getInitialState() {	return { expression: [],	lastAnswer: 0,	answer: undefined };	},	cleanAll: function cleanAll() {	this.setState({ expression: [], answer: undefined });	},	cleanLast: function cleanLast() {	this.setState({ expression: this.state.expression.slice(0, this.state.expression.length - 1) });	},	addAction: function addAction(b) {	var _this = this;	var _state = this.state;	var expression = _state.expression;	var lastAnswer = _state.lastAnswer;	expression.length === 0 ? this.setState({ answer: undefined }, function () {	_this.setState({ expression: expression.concat(isNum(b) ? [b] : isNum(lastAnswer) ? [lastAnswer.toString(), b] : [b]) });	}) : this.setState({ expression: validate(expression, b) });	},	lastAnswer: function lastAnswer() {	this.setState({ expression: this.state.expression.concat([this.state.lastAnswer.toString()]) });	},	calculate: function calculate() {	var _this2 = this;	var convertedExpression = EvalTools.convertKeys(this.state.expression);	// todo errors check	console.warn(convertedExpression.errors);	var postfix = EvalTools.intToPost(convertedExpression.keys);	this.setState({ expression: [], answer: EvalTools.evaluate(postfix) }, function () {	return _this2.setState({ lastAnswer: _this2.state.answer });	});	},	render: function render() {	var buttons = [{ name: 'AC',	function: this.cleanAll }, { name: 'CE',	function: this.cleanLast }, { name: '%',	function: this.addAction }, { name: '/',	function: this.addAction }, { name: '7',	function: this.addAction }, { name: '8',	function: this.addAction }, { name: '9',	function: this.addAction }, { name: '*',	function: this.addAction }, { name: '4',	function: this.addAction }, { name: '5',	function: this.addAction }, { name: '6',	function: this.addAction }, { name: '-',	function: this.addAction }, { name: '1',	function: this.addAction }, { name: '2',	function: this.addAction }, { name: '3',	function: this.addAction }, { name: '+',	function: this.addAction }, { name: '.',	function: this.addAction }, { name: '0',	function: this.addAction }, { name: 'Ans',	function: this.lastAnswer }, { name: '=',	function: this.calculate }];	return React.createElement(	'div',	{ className: 'calculator' },	React.createElement('input', { className: 'display', value: this.state.answer || this.state.expression.join(''), type: 'text', readOnly: true }),	React.createElement(	'div',	{ className: 'buttons' },	buttons.map(function (button) {	return React.createElement(	'div',	{ key: button.name, className: 'button', onClick: function onClick() {	return button.function(button.name);	} },	button.name	);	})	)	);	}
});
React.render(React.createElement(Calculator, null), document.getElementById('calc'));
FCC JS Calculator - Script Codes
FCC JS Calculator - Script Codes
Home Page Home
Developer Victoria
Username Enieste
Uploaded December 02, 2022
Rating 3
Size 4,996 Kb
Views 14,168
Do you need developer help for FCC JS Calculator?

Find the perfect freelance services for your business! Fiverr's mission is to change how the world works together. Fiverr connects businesses with freelancers offering digital services in 500+ categories. Find Developer!

Victoria (Enieste) Script Codes
Name
FCC Game of Life
FCC Recipe Box
FCC Reacted Markdown
FCC Pomodoro
React konva
FCC Local Weather
FCC Tic Tac Toe
React TODO
FCC Wiki viewer
Profile
Create amazing video scripts with AI!

Jasper is the AI Content Generator that helps you and your team break through creative blocks to create amazing, original content 10X faster. Discover all the ways the Jasper AI Content Platform can help streamline your creative workflows. Start For Free!