83 lines
2.5 KiB
Markdown
83 lines
2.5 KiB
Markdown
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---
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id: 56533eb9ac21ba0edf2244d3
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title: Comparison with the Strict Inequality Operator
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localeTitle: Comparación con el operador de desigualdad estricta
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challengeType: 1
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---
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## Description
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<section id='description'>
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El operador de desigualdad estricta ( <code>!==</code> ) es el opuesto lógico del operador de igualdad estricta. Significa "Estrictamente no es igual" y devuelve <code>false</code> donde la igualdad estricta sería <code>true</code> y <em>viceversa</em> . La desigualdad estricta no convertirá los tipos de datos.
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<strong>ejemplos</strong>
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<blockquote>3 !== 3 // false<br>3 !== '3' // true<br>4 !== 3 // true</blockquote>
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</section>
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## Instructions
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<section id='instructions'>
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Agregue el <code>strict inequality operator</code> a la sentencia <code>if</code> para que la función devuelva "No igual" cuando <code>val</code> no sea estrictamente igual a <code>17</code>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>testStrictNotEqual(17)</code> debe devolver "Equal"
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testString: 'assert(testStrictNotEqual(17) === "Equal", "<code>testStrictNotEqual(17)</code> should return "Equal"");'
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- text: <code>testStrictNotEqual("17")</code> debe devolver "Not Equal"
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testString: 'assert(testStrictNotEqual("17") === "Not Equal", "<code>testStrictNotEqual("17")</code> should return "Not Equal"");'
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- text: <code>testStrictNotEqual(12)</code> debe devolver "Not Equal"
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testString: 'assert(testStrictNotEqual(12) === "Not Equal", "<code>testStrictNotEqual(12)</code> should return "Not Equal"");'
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- text: <code>testStrictNotEqual("bob")</code> debe devolver "Not Equal"
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testString: 'assert(testStrictNotEqual("bob") === "Not Equal", "<code>testStrictNotEqual("bob")</code> should return "Not Equal"");'
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- text: Debes usar el operador <code>!==</code>
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testString: 'assert(code.match(/(val\s*!==\s*\d+)|(\d+\s*!==\s*val)/g).length > 0, "You should use the <code>!==</code> operator");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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// Setup
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function testStrictNotEqual(val) {
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// Only Change Code Below this Line
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if (val) {
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// Only Change Code Above this Line
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return "Not Equal";
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}
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return "Equal";
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}
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// Change this value to test
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testStrictNotEqual(10);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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function testStrictNotEqual(val) {
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if (val !== 17) {
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return "Not Equal";
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}
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return "Equal";
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}
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```
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</section>
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