knockout.mapping
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Published
20 hours ago •
SteveSanderson
SteveSanderson
JSON string value of "constructor" throws exception on .fromJS call
I am getting the following error when a data field value is the string "constructor":
Uncaught TypeError: Object function Object() { [native code] } has no method 'get' knockout.mapping-latest.debug.js:770
I am using version v2.3.2.
Here is my code to show how I am calling it:
var results = ko.observableArray();
ko.mapping.fromJS(data.items, {}, results);
data.items is an array of objects and the following is the JSON item that is causing this error:
{
"id": 25602,
"created": "2012-12-30T10:13:29.03",
"created_text": "2012-12-30T18:13:29Z",
"source_account": {
"name": "Scott Smith",
"display_name": "Scott Smith",
"title": "Founder of coderbits",
"location": "Northern California",
"website_link": "http://scottksmith.com",
"bio": "Scott Smith is the founder of coderbits.com, senior director of software development at Front Porch, Inc, and a scuba diving developer extraordinaire.",
"id": 1,
"views": 993,
"created": "2012-08-24T11:41:43.157",
"updated": "2012-12-29T20:20:55.24",
"username": "scott",
"gravatar_hash": "4400061d4ff1f220a9b5f060368cd869",
"gravatar_link": "https://secure.gravatar.com/avatar/4400061d4ff1f220a9b5f060368cd869?d=https%3A%2F%2Fcoderbits.com%2Fimages%2Fgravatar.png&r=PG",
"about": "Curently inhabiting Northern California, Scott Smith is a self described 'Founder of coderbits' with a proficiency in c#, javascript, web development, .net, and jquery.",
"badge_total_score": 264,
"show_summary": true,
"show_skills": true,
"show_code": true,
"show_binaries": true,
"show_designs": true,
"show_education": true,
"show_awards": true,
"show_memberships": true,
"show_activity_stream": true,
"show_badges": true,
"one_bit_badges": 48,
"eight_bit_badges": 17,
"sixteen_bit_badges": 5,
"thirty_two_bit_badges": 0,
"sixty_four_bit_badges": 0,
"follower_count": 65,
"following_count": 68,
"top_skills": [
{
"id": 71711,
"name": "c#",
"count": 146
},
{
"id": 71712,
"name": "javascript",
"count": 136
},
{
"id": 71713,
"name": "web development",
"count": 132
},
{
"id": 71714,
"name": ".net",
"count": 21
},
{
"id": 71715,
"name": "css",
"count": 9
}
],
"top_tools": [
{
"id": 19360,
"name": "visual studio",
"count": 35
},
{
"id": 19361,
"name": "git",
"count": 20
},
{
"id": 19362,
"name": "nuget",
"count": 16
}
],
"top_interests": [
{
"id": 95584,
"name": "javascript",
"count": 208
},
{
"id": 95585,
"name": "c#",
"count": 200
},
{
"id": 95586,
"name": "web development",
"count": 140
},
{
"id": 95587,
"name": "visual studio",
"count": 47
},
{
"id": 95588,
"name": ".net",
"count": 42
}
],
"top_traits": [
{
"id": 84837,
"name": "Quality",
"count": 63
},
{
"id": 84838,
"name": "Productivity",
"count": 52
},
{
"id": 84839,
"name": "Ambition",
"count": 45
},
{
"id": 84840,
"name": "Knowledge",
"count": 42
},
{
"id": 84841,
"name": "Self Development",
"count": 30
}
],
"top_areas": [
{
"id": 52341,
"name": "Code",
"count": 141
},
{
"id": 52342,
"name": "Education",
"count": 99
},
{
"id": 52343,
"name": "Memberships",
"count": 13
},
{
"id": 52344,
"name": "Binaries",
"count": 8
},
{
"id": 52345,
"name": "Designs",
"count": 8
}
]
},
"activity_type": {
"id": 9,
"value": "Invited",
"icon_class": "icon-user",
"display_text": " invited and signed up ",
"dropdown": false
},
"target_account": {
"name": "kriskd",
"display_name": "kriskd",
"title": "coder",
"location": "planet earth",
"website_link": "",
"bio": "",
"id": 4988,
"views": 19,
"created": "2012-12-30T10:13:28.817",
"updated": "2012-12-30T13:02:31.993",
"username": "kriskd",
"gravatar_hash": "8c46482135d03742c0fcdce5e043bc94",
"gravatar_link": "https://secure.gravatar.com/avatar/8c46482135d03742c0fcdce5e043bc94?d=https%3A%2F%2Fcoderbits.com%2Fimages%2Fgravatar.png&r=PG",
"about": "Curently inhabiting planet earth, kriskd is a self described 'coder' with a proficiency in javascript, php, cakephp, constructor, and overwrite.",
"badge_total_score": 45,
"show_summary": true,
"show_skills": true,
"show_code": true,
"show_binaries": false,
"show_designs": false,
"show_education": true,
"show_awards": true,
"show_memberships": true,
"show_activity_stream": true,
"show_badges": true,
"one_bit_badges": 5,
"eight_bit_badges": 3,
"sixteen_bit_badges": 1,
"thirty_two_bit_badges": 0,
"sixty_four_bit_badges": 0,
"follower_count": 1,
"following_count": 1,
"top_skills": [
{
"id": 74011,
"name": "javascript",
"count": 10
},
{
"id": 74012,
"name": "php",
"count": 10
},
{
"id": 74013,
"name": "cakephp",
"count": 1
},
{
"id": 74014,
"name": "constructor",
"count": 1
},
{
"id": 74015,
"name": "overwrite",
"count": 1
}
],
"top_tools": [
{
"id": 20013,
"name": "git",
"count": 2
}
],
"top_interests": [
{
"id": 98705,
"name": "php",
"count": 24
},
{
"id": 98706,
"name": "javascript",
"count": 20
},
{
"id": 98707,
"name": "cakephp",
"count": 11
},
{
"id": 98708,
"name": "css",
"count": 10
},
{
"id": 98709,
"name": "drupal",
"count": 10
}
],
"top_traits": [
{
"id": 87555,
"name": "Communication",
"count": 25
},
{
"id": 87556,
"name": "Influence",
"count": 18
},
{
"id": 87557,
"name": "Knowledge",
"count": 2
},
{
"id": 87558,
"name": "Productivity",
"count": 1
},
{
"id": 87559,
"name": "Teamwork",
"count": 1
}
],
"top_areas": [
{
"id": 53957,
"name": "Code",
"count": 6
},
{
"id": 53958,
"name": "Education",
"count": 2
},
{
"id": 53959,
"name": "Memberships",
"count": 2
}
]
},
"external_account": null,
"earned_badge": null,
"input": null
}
The offending part of the JSON is this;
{
"id": 74014,
"name": "constructor",
"count": 1
}
When I change the string "constructor" to anything else, it works just fine.
Still happening in current version
var originalData = {
id: 1,
name: "watch"
};
var viewModel = ko.mapping.fromJS(originalData);
