Commit 46b2fc7

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thow error instead of string error message

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-4

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src/_DataStructures_/Stack/postfix-expression-evaluation
- index.js
- postfix-expression-evaluation.test.js

-4

lines changed

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -13,7 +13,7 @@ function evaluatePostfixExpression(expression) {`
`13`	`13`	`expression = expression.trim();`
`14`	`14`
`15`	`15`	`if (expression.length === 0 \|\| expression.length === 1) {`
`16`		`- returnERROR_STRING;`
	`16`	`+ thrownewError(ERROR_STRING);`
`17`	`17`	`}`
`18`	`18`
`19`	`19`	`const s = new Stack();`
`@@ -52,7 +52,7 @@ function evaluatePostfixExpression(expression) {`
`52`	`52`	`if (s.isEmpty()) {`
`53`	`53`	`return result;`
`54`	`54`	`}`
`55`		`- returnERROR_STRING;`
	`55`	`+ thrownewError(ERROR_STRING);`
`56`	`56`	`}`
`57`	`57`
`58`	`58`	`module.exports = {`

Lines changed: 1 addition & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -56,8 +56,7 @@ describe('Postfix expression evaluation', () => {`
`56`	`56`	`describe('should throw error on invalid expressions', () => {`
`57`	`57`	`const invalidExpressions = ['12', '1', '+', '1+2', '+12'];`
`58`	`58`	`test.each(invalidExpressions)('running for %p', (expression) => {`
`59`		`- const result = evaluatePostfixExpression(expression);`
`60`		`- expect(result).toEqual(ERROR_STRING);`
	`59`	`+ expect(() => evaluatePostfixExpression(expression)).toThrow(ERROR_STRING);`
`61`	`60`	`});`
`62`	`61`	`});`
`63`	`62`	`});`

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