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---
title: I before E except after C
id: 5a23c84252665b21eecc7eb0
challengeType: 5
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videoUrl: ''
localeTitle: Yo antes de E excepto después de C
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---
## Description
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< section id = "description" > La frase < a href = "https://en.wikipedia.org/wiki/I before E except after C" > " I antes de E, excepto después de C" < / a > es una mnemotécnica muy conocida que se supone que ayuda cuando se deletrean palabras en inglés. Usando las palabras provistas, verifique si las dos sub-cláusulas de la frase son plausibles individualmente: < ol > < li style = "margin-bottom: 5px;" > < i > " I antes de E cuando no está precedido por C" .< / i > < / li > < li > < i > " E antes que yo cuando está precedido por C" .< / i > < / li > < / ol > Si ambas subfrases son plausibles, entonces se puede decir que la frase original es plausible. Escriba una función que acepte una palabra y verifique si la palabra sigue esta regla. La función debería devolver verdadero si sigue la regla de lo contrario falso. < / section >
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## Instructions
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< section id = "instructions" >
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< / section >
## Tests
< section id = 'tests' >
```yml
tests:
- text: < code > IBeforeExceptC</ code > debería ser una función.
testString: 'assert(typeof IBeforeExceptC=="function","< code > IBeforeExceptC< / code > should be a function.");'
- text: < code > IBeforeExceptC(" receive" )</ code > debe devolver un valor booleano.
testString: 'assert(typeof IBeforeExceptC("receive")=="boolean","< code > IBeforeExceptC("receive")< / code > should return a boolean.");'
- text: < code > IBeforeExceptC(" receive" )</ code > debe devolver < code > true</ code > .
testString: 'assert.equal(IBeforeExceptC("receive"),true,"< code > IBeforeExceptC("receive")< / code > should return < code > true< / code > .");'
- text: < code > IBeforeExceptC(" science" )</ code > debe devolver < code > false</ code > .
testString: 'assert.equal(IBeforeExceptC("science"),false,"< code > IBeforeExceptC("science")< / code > should return < code > false< / code > .");'
- text: < code > IBeforeExceptC(" imperceivable" )</ code > debe devolver < code > true</ code > .
testString: 'assert.equal(IBeforeExceptC("imperceivable"),true,"< code > IBeforeExceptC("imperceivable")< / code > should return < code > true< / code > .");'
- text: < code > IBeforeExceptC(" inconceivable" )</ code > debe devolver < code > true</ code > .
testString: 'assert.equal(IBeforeExceptC("inconceivable"),true,"< code > IBeforeExceptC("inconceivable")< / code > should return < code > true< / code > .");'
- text: < code > IBeforeExceptC(" insufficient" )</ code > debe devolver < code > false</ code > .
testString: 'assert.equal(IBeforeExceptC("insufficient"),false,"< code > IBeforeExceptC("insufficient")< / code > should return < code > false< / code > .");'
- text: < code > IBeforeExceptC(" omniscient" )</ code > debe devolver < code > false</ code > .
testString: 'assert.equal(IBeforeExceptC("omniscient"),false,"< code > IBeforeExceptC("omniscient")< / code > should return < code > false< / code > .");'
```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< div id = 'js-seed' >
```js
function IBeforeExceptC (word) {
// Good luck!
}
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```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
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// solution required
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```
< / section >