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			102 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 5a23c84252665b21eecc7eb0
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| title: I before E except after C
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| challengeType: 5
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| forumTopicId: 302288
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| dashedName: i-before-e-except-after-c
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| ---
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| 
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| # --description--
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| 
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| The phrase ["I before E, except after C"](https://en.wikipedia.org/wiki/I before E except after C) is a widely known mnemonic which is supposed to help when spelling English words.
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| 
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| Using the words provided, check if the two sub-clauses of the phrase are plausible individually:
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| 
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| <ol>
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|   <li>
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|     <i>"I before E when not preceded by C".</i>
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|   </li>
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|   <li>
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|     <i>"E before I when preceded by C".</i>
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|   </li>
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| </ol>
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| 
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| If both sub-phrases are plausible then the original phrase can be said to be plausible.
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| 
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| # --instructions--
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| 
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| Write a function that accepts a word and check if the word follows this rule. The function should return true if the word follows the rule and false if it does not.
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| 
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| # --hints--
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| 
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| `IBeforeExceptC` should be a function.
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| 
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| ```js
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| assert(typeof IBeforeExceptC == 'function');
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| ```
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| 
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| `IBeforeExceptC("receive")` should return a boolean.
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| 
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| ```js
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| assert(typeof IBeforeExceptC('receive') == 'boolean');
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| ```
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| 
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| `IBeforeExceptC("receive")` should return `true`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('receive'), true);
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| ```
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| 
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| `IBeforeExceptC("science")` should return `false`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('science'), false);
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| ```
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| 
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| `IBeforeExceptC("imperceivable")` should return `true`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('imperceivable'), true);
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| ```
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| 
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| `IBeforeExceptC("inconceivable")` should return `true`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('inconceivable'), true);
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| ```
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| 
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| `IBeforeExceptC("insufficient")` should return `false`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('insufficient'), false);
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| ```
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| 
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| `IBeforeExceptC("omniscient")` should return `false`.
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| 
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| ```js
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| assert.equal(IBeforeExceptC('omniscient'), false);
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| ```
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| 
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| # --seed--
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| 
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| ## --seed-contents--
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| 
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| ```js
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| function IBeforeExceptC(word) {
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| 
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| }
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| ```
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| 
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| # --solutions--
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| 
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| ```js
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| function IBeforeExceptC(word)
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| {
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|     if(word.indexOf("c")==-1 && word.indexOf("ie")!=-1)
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|         return true;
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|     else if(word.indexOf("cei")!=-1)
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|         return true;
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|     return false;
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| }
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| ```
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