I have written the code below:
function processLWO(lwo,type)
{
FB.api('me/'+lwo,
'post',
{shoe :'<%=sItemURL%>',object :'<%=sItemURL%>'},
function (response)
{
//code
}
);
}
My problem is with the following line of code:
//Code that works - Code A
shoe :'<%=sItemURL%>',object :'<%=sItemURL%>'
//Code I want to use - Code B
type.toString():'<%=sItemURL%>'
Code A works but I want to implement Code B because it is more flexible however Code B returns a Javascript error stating the original function that lead to this function is undefined. I understand type.toString() should be a Facebook object (for example, shoe or object) but if type.toString() is processed and returns a value then it would be evaluated as a valid object type.
Any suggestions how to solve this? Code A is just so lazy/stupid....
var params = {};
params[type] = <%=sItemURL%>'
FB.api('/me/' + lwo, 'POST', params, ...
Related
This code is similar to our previous mean() function, except in the
following if block where we check to see if a callback has been
provided. If it has, then the callback is applied to each value
before being added to the total; otherwise, the total is calculated
using just the values from the array given as the first argument
mean([2,5,7,11,4]); // this should just calculate the mean << 5.8
mean([2,5,7,11,4],x => 2*x); << 11.6
function mean(array ,callback) {
if (callback) {
array.map( callback );
}
const total = array.reduce((a, b) => a + b);
return total/array.length;
}
console.log(mean([2,5,7,11,4,5],x => 2*x));
function mean(array,callback) {
if (callback) {
array = array.map( callback ); // <--- note changes here
}
const total = array.reduce((a, b) => a + b);
return total/array.length;
}
console.log(mean([2,5,7,11,4])); //5.8 fine
console.log(mean([2,5,7,11,4],x => 2*x)) // 11.6
You weren't off by much. Check out the exact definition of Array.prototype.map() The return value from that function is a new array with each element being the result of the callback function.
I will say, your question got me to review Array.prototype.map() and passing callback functions. Thanks!
Almost forgot.. See how simple my code is formatted? That makes it easy for someone to see what's going on quickly. Recommend you do the same when posting questions here in the future.
I am writing a protractor test case to compare the name(s) of the displayed data is same as the searched name.
Even though my test case works fine, I am not able to understand what is happening. Because when i expect the name to compare, it compares as expected, but when i print the elementFinder's(rowData)(i have attached the output screen shot here) value in console.log, it show a huge list of some values which i am not able to understand?
PS: I am a newbie to protractor`
This is the testCase:
it('should show proper data for given last name', function () {
var searchValue='manning';
searchBox.sendKeys(searchValue);
search.click();
element.all(by.binding('row.loanNumber')).count().then(function(value) {
var loanCount = value;
for (var i = 0; i < loanCount; i++) {
var rowData = element.all(by.binding('row.borrowerName')).get(i).getText();
expect(rowData).toMatch(searchValue.toUpperCase());
console.log(rowData,'*****',searchValue.toUpperCase());
}
});
});`
And give me valuable suggestions about my style of code
rowData is a promise (not a value), so when you console.log it, you get the promise object
Protractor patches Jasmine to automatically resolve promises within the expect(), so that's how it knows to resolve the value and compare to the expected result.
If you want to console.log the value, you need to resolve the promise with .then() to get the value.
rowData.then(function(rowDataText) {
console.log(rowDataText);
)}
This is pretty much everyone's first question when they start using protractor. You will want to learn how promises work if you want a good understanding of how to manipulate them.
I am trying to get the coordinates with below code : If i am clicking on the canvas to grab the X and Y position : showing me console error : Uncaught TypeError: Cannot read property 'position' of undefined
screenshot : http://screencast.com/t/0LHAae5AicRz
viewer.addHandler('canvas-click', function (target, info) {
var viewportPoint = viewer.viewport.pointFromPixel(info.position);
var imagePoint = viewer.viewport.viewportToImageCoordinates(viewportPoint.x, viewportPoint.y);
console.log(imagePoint.x, imagePoint.y);
});
The info parameter is probably not what you think it is.
Do console.log(info) to see what the variable is in the console.
Perhaps the variable you are looking for is another parameter.
Also log all the arguments that get passed to the function. Write this inside the function:
console.log(arguments)
This way you will be able to inspect the variables and find the data you need.
This way, I can remove the canvas-click related - position of undefined error : Take a look at here for the answer : https://github.com/openseadragon/openseadragon/issues/318
For the //! OpenSeadragon 1.1.1, please updated the code as per below.
viewer.addHandler('canvas-click', function (event)
{
console.log(event);
var viewportPoint = viewer.viewport.pointFromPixel(event.position);
var imagePoint = viewer.viewport.viewportToImageCoordinates(viewportPoint.x, viewportPoint.y);
console.log(imagePoint.x, imagePoint.y);
});
Hey there I am trying to make my first class my code is as follows:
class Twitt:
def __init__(self):
self.usernames = []
self.names = []
self.tweet = []
self.imageurl = []
def twitter_lookup(self, coordinents, radius):
twitter = Twitter(auth=auth)
coordinents = coordinents + "," + radius
print coordinents
query = twitter.search.tweets(q="", geocode='33.520661,-86.80249,50mi', rpp=10)
print query
for result in query["statuses"]:
self.usernames.append(result["user"]["screen_name"])
self.names.append(result['user']["name"])
self.tweet.append(h.unescape(result["text"]))
self.imageurl.append(result['user']["profile_image_url_https"])
What I am trying to be able to do is then use my class like so:
test = Twitt()
hello = test.twitter_lookup("38.5815720,-121.4944000","1m")
print hello.usernames
This does not work and I keep getting: "AttributeError: 'NoneType' object has no attribute 'usernames'"
Maybe I just misunderstood the tutorial or am trying to use this wrong. Any help would be appreciated thanks.
I see the error is test.twitter_lookup("38.5815720,-121.4944000","1m") return nothing. If you want the usernames, you need to do
test = Twitt()
test.twitter_lookup("38.5815720,-121.4944000","1m")
test.usernames
Your function twitter_lookup is modifying the Twitt object in-place. You didn't make it return any kind of value, so when you call hello = test.twitter_lookup(), there's no return value to assign to hello, and it ends up as None. Try test.usernames instead.
Alternatively, have the twitter_lookup function put its results in some new object (perhaps a dictionary?) and return it. This is probably the more sensible solution.
Also, the function accepts a coordinents (it's 'coordinates') argument, but then throws it away and uses a hard-coded value instead.
In some of my Meteor methods, I'm sending Mongodb ObjectId's from the client as arguments. I'd like to run these through Meteor's check() system but I can't seem to find anything that matches successfully with them.
I've tried
var someObjectId = Meteor.Collection.ObjectId();
check(someObjectId, Meteor.Collection.ObjectId()) // fails
check(someObjectId, { _str : String }) //fails
check(someObjectId, String) //fails
any help much appreciated !
Instead of:
check(someObjectId, Meteor.Collection.ObjectID());
Try without the parentheses:
check(someObjectId, Meteor.Collection.ObjectID);
Edit-
Note that the error message for this check isn't ideal.
check({}, Meteor.Collection.ObjectID);
// Error: Match error: Expected
You could assume the message should be something like
// Error: Match error: Expected ObjectId, got object
You can see why this happens in this snippet from the check package.
https://github.com/meteor/meteor/blob/devel/packages/check/match.js
if (pattern instanceof Function) {
if (value instanceof pattern)
return;
// XXX what if .name isn't defined
throw new Match.Error("Expected " + pattern.name);
}
Meteor.Collection.ObjectID does not have name property.
As an alternative solution, you could simply pass the hexadecimal string as an argument instead of the ObjectID.
var idValidator = Match.Where(function (id) {
check(id, String);
return /[0-9a-fA-F]{24}/.test(id);
});
check(new Meteor.Collection.ObjectID()._str, idValidator);
// success
check('', idValidator);
// Error: Match error: Failed Match.Where validation
check({}, idValidator);
// Error: Match error: Expected string, got object
check([], idValidator);
// Error: Match error: Expected string, got object <--- bug? I expect array
Note, this regular expression is pulled from here.
https://github.com/mongodb/js-bson/blob/master/lib/bson/objectid.js
You should use following to generate a random ObjectID:
var someObjectId = new Meteor.Collection.ObjectID();
As Cuberto said, you can then check it by Meteor.Collection.ObjectID:
check(someObjectId, Meteor.Collection.ObjectID)
Normally when using check() you're not in a position to generate a new Meteor _id. Here's an alternative using Match.check()
First extend the Match object with:
Match._id = Match.Where(function (id) {
check(id, String);
return /[a-zA-Z0-9]{17,17}/.test(id);
});
This is useful because you're likely to be checking _ids in many of your methods.
Now simply:
check(_id,Match._id);
more on this pattern
Complete answer to the original question:
First, define a matcher for a single object in your array of arguments:
Match._id = Match.Where(function (id) {
check(id, String);
return /[a-zA-Z0-9]{17,17}/.test(id);
});
Then you can call:
check(MyArrayOfArguments, [Match._id])