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.
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JavaScript: Tips of the Day
Converts a string to title case
Example:
const toTitleCase = str => str .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g) .map(x => x.charAt(0).toUpperCase() + x.slice(1)) .join(' '); console.log(toTitleCase('some_database_field_name')); // 'Some Database Field Name' console.log(toTitleCase('Some label that needs to be title-cased')); // 'Some Label That Needs To Be Title Cased' console.log(toTitleCase('some-package-name')); // 'Some Package Name' console.log(toTitleCase('some-mixed_string with spaces_underscores-and-hyphens')); // 'Some Mixed String With Spaces Underscores And Hyphens'
Output:
"Some Database Field Name" "Some Label That Needs To Be Title Cased" "Some Package Name" "Some Mixed String With Spaces Underscores And Hyphens"
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