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Accessing Objects Properties with Variables

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This commit is contained in:
Abhisek Pattnaik
2015-12-27 20:32:04 +05:30
committed by SaintPeter
parent af910d8121
commit 7732273a72
1 changed files with 3 additions and 2 deletions
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seed/challenges/01-front-end-development-certification/basic-javascript.json
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@ -3677,7 +3677,7 @@
"id": "56533eb9ac21ba0edf2244c9",
"title": "Accessing Objects Properties with Variables",
"description": [
"Another use of bracket notation on objects is to use a variable to access a property. This can be very useful for itterating through lists of object properties or for doing lookups.",
"Another use of bracket notation on objects is to use a variable to access a property. This can be very useful for iterating through lists of object properties or for doing lookup.",
"Here is an example of using a variable to access a property:",
"<blockquote>var someProp = \"propName\";<br>var myObj = {<br> propName: \"Some Value\"<br >}<br>myObj[someProp]; // \"Some Value\"</blockquote>",
"Note that we do <em>not</em> use quotes around the variable name when using it to access the property because we are using the <em>value</em> of the variable, not the <em>name</em>",
@ -3708,7 +3708,8 @@
""
],
"solutions": [
""
"var playerNumber = 16;",
"var player = testObj[playerNumber];"
],
"type": "waypoint",
"challengeType": "1",