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Returning Boolean Values from Functions

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Abhisek Pattnaik
2015-12-27 13:26:21 +05:30
committed by SaintPeter
parent 8d8c82fd7d
commit 44de5cb468
1 changed files with 4 additions and 2 deletions
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6
seed/challenges/01-front-end-development-certification/basic-javascript.json
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@ -3359,7 +3359,7 @@
"id": "5679ceb97cbaa8c51670a16b",
"title": "Returning Boolean Values from Functions",
"description": [
"You may recall from <a href=\"challenges/waypoint-comparison-with-the-equality-operator\">Comparison with the Equality Operator</a> that all comparison operators return a boolean <code>true</code> or <code>false</code> value.",
"You may recall from <a href=\"waypoint-comparison-with-the-equality-operator\" target=\"_blank\">Comparison with the Equality Operator</a> that all comparison operators return a boolean <code>true</code> or <code>false</code> value.",
"A common <dfn>anti-pattern</dfn> is to use an <code>if/else</code> statement to do a comparison and then <code>return</code> <code>true</code>/<code>false</code>:",
"<blockquote>function isEqual(a,b) {<br> if(a === b) {<br> return true;<br/> } else {<br> return false;<br/> }<br>}</blockquote>",
"Since <code>===</code> returns <code>true</code> or <code>false</code>, we can simply return the result of the comparion:",
@ -3390,7 +3390,9 @@
""
],
"solutions": [
""
"function isLess(a, b) {",
" return a < b;",
"}"
],
"type": "waypoint",
"challengeType": "1",