JavaScript: Check whether it is possible to replace $ in a specified expression
JavaScript Basic: Exercise-89 with Solution
Write a JavaScript program to check whether it is possible to replace $ in a given expression x $ y = z with one of the four signs +, -, * or / to obtain a correct expression.
For example x = 10, y = 30 and z = 300, we can replace $ with a multiple operator (*) to obtain x * y = z
Pictorial Presentation:
Sample Solution:
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Check whether it is possible to replace $ in a specified expression</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function check_arithmetic_Expression(x, y, z) {
return x + y == z || x * y == z || x / y == z || x - y == z;
}
console.log(check_arithmetic_Expression(10, 25, 35))
console.log(check_arithmetic_Expression(10, 25, 250))
console.log(check_arithmetic_Expression(30, 25, 5))
console.log(check_arithmetic_Expression(100, 25, 4.0))
console.log(check_arithmetic_Expression(100, 25, 25))
Sample Output:
true true true true false
Flowchart:
ES6 Version:
function check_arithmetic_Expression(x, y, z) {
return x + y == z || x * y == z || x / y == z || x - y == z;
}
console.log(check_arithmetic_Expression(10, 25, 35))
console.log(check_arithmetic_Expression(10, 25, 250))
console.log(check_arithmetic_Expression(30, 25, 5))
console.log(check_arithmetic_Expression(100, 25, 4.0))
console.log(check_arithmetic_Expression(100, 25, 25))
Live Demo:
See the Pen javascript-basic-exercise-89 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript program to check whether two given integers are similar or not, if a given divisor divides both integers and it does not divide either.
Next: Write a JavaScript program to find the kth greatest element of a given array of integers.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
JavaScript: Tips of the Day
How to insert an item into an array at a specific index (JavaScript)?
What you want is the splice function on the native array object.
arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:
var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());
Ref: https://bit.ly/2BXbp04
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