My json structure:
http://snag.gy/da0nf.jpg
my jquery: ( http://jsfiddle.net/EAcs9/2/ )
var wotAPI = "http://api.worldoftanks.com/2.0/clan/info/?";
$.getJSON( wotAPI, {application_id: "16924c431c705523aae25b6f638c54dd",clan_id: "1000013300"})
.done( function( jsonData ) {
$.each( jsonData.data, function( i ) {
$('#result').append(i);
});
});
I would like to iterate the members in my JSON object and access each member to get their account_name. I can't seem to get this to work. Can someone have a look at tell me how to resolve this. I think I am missing a concept here.
Your real issue is in this code. What is it supposed to do, because I dont think it's doing what you think it's doing.
function getObjects(obj, key, val) {
var objects = [];
for (var i in obj) {
if (!obj.hasOwnProperty(i)) continue;
if (typeof obj[i] == 'object') {
objects = objects.concat(getObjects(obj[i], key, val));
} else if (i == key && obj[key] == val) {
objects.push(obj);
}
}
return objects;
}
Looks like objects is reset to be an empty array on every iteration of the recursion.
Related
I am still coming up to speed with dart and wanted to know if there was an easier way to not execute a statement if the value is null. See example below:
I can always do the if statements below for setting field3 and field4, but felt like something like field5 should work. But when I try to do that, it complains that a null check operator is used on a null value.
Also I don't want to change the Map to have a dynamic value.
Is there a single one liner to do what I am trying to do, or do I just need to check for null before setting the value.
Map<String, Object> myMap = {};
print('running now');
try {
myMap['field1'] = DummyClass.getString('hello');
myMap['field2'] = DummyClass.getString('good');
//Is there a more concise way to do this than the 2 options below?
if (DummyClass.getOptionalString('goodbye') != null) {
myMap['field3'] = DummyClass.getOptionalString('goodbye')!;
}
String? temp = DummyClass.getOptionalString('go');
if (temp != null) {
myMap['field4'] = temp;
}
// This gives an error 'null check operator used on a null value'
// myMap['field5'] ??= DummyClass.getOptionalString('to')!;
} catch (e) {
print('error condition, $e');
}
print(myMap);
}
class DummyClass {
static String getString(String? strParam) {
String? retString = getOptionalString(strParam);
if (retString == null) {
throw ('nulls are not allowed');
}
return retString;
}
static String? getOptionalString(String? strParam) {
if (strParam == null || strParam.length < 3) {
return null;
}
return strParam;
}
}
There's no built-in way to do what you want, but you could write a function (or extension method) to do it. For example:
extension MapTrySet<K, V> on Map<K, V> {
void trySet(K key, V? value) {
if (value != null) {
this[key] = value;
}
}
}
and then you could do:
myMap.trySet('field3', DummyClass.getOptionalString('goodbye'));
myMap.trySet('field4', DummyClass.getOptionalString('go'));
Alternatively, if you really want to use normal Map syntax, you could create your own Map class that has a void operator []=(K key, V? value) override and does nothing when the value is null, but that probably would not be worth the effort.
The issue is that the ??= operator assigns to the left if it is null. Expanded, it would look something like this:
a ??= b;
// Equivalent to:
if (a == null) {
a = b;
}
Which is not something that you're trying to achieve. AFAIK, there is no such operator yet in Dart. However, you can try this:
final possiblyNullValue = '';
final myMap = <String, String>{};
myMap['key'] = possiblyNullValue ?? myMap['key'];
// Equivalent to:
if (possiblyNullValue != null) {
myMap['key'] = possiblyNullValue;
}
// or:
myMap['key'] = possiblyNullValue != null? possiblyNullValue : myMap['key'];
Which would work in your case as a one-liner.
You could create your map with all entries, even null, and then filter the null values out:
void main() {
try {
final myMap = <String, dynamic>{
'field1': DummyClass.getString('hello'),
'field2': DummyClass.getString('good'),
'field3': DummyClass.getOptionalString('goodbye'),
'field4': DummyClass.getOptionalString('go'),
}..removeWhere((k, v) => v == null);
print(myMap);
} catch (e) {
print('error condition, $e');
}
}
I have a MEAN app, and I have lots of dates stored in the mongodb, the clock is changing in the UK on 27th October, so all of the dates stored in the db need to have one hour added.
I wouldn't like to loop through all docs in the db and add an hour to its dates, I'd prefer that to be dynamic, so I'm trying to implement a query hook to check each date on the incoming docs and the timezone offset attached in the doc to add/subtract the timezone offset.
The problem is that I'd like the loop on the incoming docs to dynamically identify where the dates are, which will be sometimes on the root of the doc, buried inside an object or an array, which I'm having a hard time to model the loop to check all of that.
I'm using functions to check if the incoming object is a date, an object or an array, but mongoose is adding a bunch of objects/functions that are hindering the operation, so I'm getting RangeError: Maximum call stack size exceeded
const config = require('../config/environment');
var UK_TIMEZONE_GMT_OFFSET = config.UK_TIMEZONE_GMT_OFFSET || 0; // should check if the offset is the same as in each document in the db, if it doesn't match then I'll subtract the offset.
const mongoose = require('mongoose');
const exec = mongoose.Query.prototype.exec;
const Q = require('Q');
mongoose.Query.prototype.exec = function () {
var d = Q.defer();
var p = exec.apply(this, arguments);
if (p) p.then(function (rs) {
var mod;
try {
mod = fixDates(rs);
} catch (err) {
console.log(err, rs)
};
d.resolve(mod);
}, d.reject);
return d.promise;
}
function fixDates(rs) {
if (isArray(rs)) {
rs.forEach(function (r, i) {
rs[i] = fixDates(r);
})
} else if (isObject(rs)) {
for (var key in rs) {
var val = rs[key];
if (isObject(val)) console.log('isobject', isObject(val), val);
// the '_id' of the document is considered an object
// also some stuff like Schema, NativeCollection ... are objects as well
// rs[key] = fixDates(val); // this line causes problems
}
} else if (isDate(rs)) {
// modify the date if necessary ..
// Check the timezone offset of the document vs the global timezone offset
of the system then add/subtract the difference
}
return rs;
}
function isDate(obj) {
return obj instanceof Date;
}
function isObject(obj) {
return Object.prototype.toString.call(obj) === '[object Object]';
}
function isArray(obj) {
return Array.isArray(obj);
}
I need better methodology to deal with mongoose returned object in order to loop through all documents and deeply find the dates and modify them.
I updated the recurring function to invoke model.toObject if exists and apply the update the date fields, while still keeping the model class
function recur(rs, docTimezone) {
if (isArray(rs)) {
rs.forEach(function (r, i) {
rs[i] = recur(r, docTimezone);
})
} else if (isObject(rs)) {
if (rs.toObject) {
return updateModel(rs, recur(rs.toObject(), docTimezone))
}
Object.keys(rs).forEach(function (key) {
var val = rs[key];
rs[key] = recur(val, docTimezone !== undefined ? docTimezone : rs.usedTimezoneGMTOffset); // usedTimezoneGMTOffset if exists on the doc
})
} else if (isDate(rs)) {
// modify the date if necessary ..
rs = alignTimezone(rs, docTimezone);
}
return rs;
}
function updateModel(model, updates) {
var key, val;
for (key in updates) {
val = updates[key];
if (val !== void 0 && key !== '_id') {
model[key] = val;
}
}
return model;
}
I have this code
it('This should pass anyway', function (done) {
testObj.testIt(regStr);
});
testObj
this.testIt = function (regStr) {
selector.count().then(function (orgCount) {
for (var curr = 0; curr < count; curr++) {
checkField(curr, regStr);
}
});
};
function checkField(curr, regStr) {
selector.get(curr).all(by.tagName('li')).get(0).getInnerHtml().then(function (text) {
expect(text).to.match(regStr, curr + '#ERR');
});
}
If one of these expects get a failure, test fails. How can i handle this? I mean - can i somehow count passed and failed expect()ations and return it? or, at least, dont let test break on first error.
I've tried try-catch, but nothing good happened.
it('This should pass anyway', function (done) {
try {
testObj.testIt(regStr);
} catch (e) {
console.log('#err' + e);
}
});
And then i wanted to use done(), but havent found any examples to do the similar. Can u please help me?
Sry for my english
UPD
You can return either null or a string from checkField(), join them up, and expect the array to be empty:
this.testIt = function (regStr) {
selector.count().then(function (orgCount) {
var errors = [];
for (var curr = 0; curr < orgCount; curr++) {
var e = checkField(curr, regStr);
if (e) { errors.push(e); }
}
assert.equal(0, errors.length, errors);
});
};
A cleaner approach would be to use map() to collect the data into an array:
var data = selector.map(function (elm) {
return elm.element(by.tagName('li')).getText();
});
expect(data).toEqual(["test1", "test2", "test3"]);
I'm trying to assert that a name is displayed in a column of a table. I've written an inResults function that will iterate through a column's text to see if a name exists. Here's what I'm trying:
Page object:
this.names = element.all(by.repeater('row in rows').column('{{row}}'));
this.inResults = function(nameString) {
var foundit = '';
this.names.each(function(name) {
name.getText().then(function(it) {
console.log(it); // each name IS printed...
if(it == nameString) {
console.log('it\'s TRUE!!!!'); // this gets printed...
foundit = true;
}
});
});
return foundit; // returns '' but should be true?
};
Spec expect:
expect(friendPage.inResults('Jo')).toBeTruthy();
Both console statements print as expected... but my expect fails as foundit's value is still ''. I've tried this a number of ways and none are working. What am I missing?
I've devised what I think is a better/cleaner way to solve this. It's less complex and doesn't require locator/css code in the method.
friend.page.js
// locator
this.friendName = function(text) { return element.all(by.cssContainingText('td.ng-binding', text)) };
// method
this.inResults = function(name) {
return this.friendName(name).then(function(found) {
return found.length > 0;
});
};
friend.spec.js
expect(friendPage.inResults('Jo')).toBeTruthy();
I've added this to my protractor_example project on GitHub...
I would recommend you to use filter: http://angular.github.io/protractor/#/api?view=ElementArrayFinder.prototype.filter
this.inResults = function(nameString) {
return this.names.filter(function(name) {
return name.getText().then(function(text) {
return text === nameString;
});
}).then(function(filteredElements) {
// Only the elements that passed the filter will be here. This is an array.
return filteredElements.length > 0;
});
});
// This will be a promise that resolves to a boolean.
expect(friendPage.inResults('Jo')).toBe(true);
Use map to do this.This will return a deferred that will resolve with the values in an array, so if you have this:
this.mappedVals =element.all(by.repeater('row in rows').column('{{row}}')).map(function (elm) {
return elm.getText();
});
It will resolve like this:
this.inResults = function(nameString) {
var foundit = '';
mappedVals.then(function (textArr) {
// textArr will be an actual JS array of the text from each node in your repeater
for(var i=0; i<textArr.length; i++){
if(it == textArr[i]) {
console.log('it\'s TRUE!!!!'); // this gets printed...
foundit = true;
}
}
return foundit;
});
}
And Use that in Spec file like,
friendPage.inResults('Jo').then(function(findIt){
expect(findIt).toBeTruthy();
});
I have an extjs form with fields. The user isn't required to enter data into each field so I do not want to submit the fields with no data. I want it to post only fields that actually have data. Is this possible?
I recommend using form's beforeaction event. While handling this event you can check all fields. If all values are empty just return false;. The following example works in ExtJS4 and has to work in ExtJS3:
myform.on('beforeaction', function(form, action) {
if (action.type == 'submit') {
var doSubmit = false, vals = form.getValues();
for (var i in vals)
if (vals[i] !== '') {
doSubmit = true;
break;
}
return doSubmit;
}
});
Actualy, the right way to not submit empty fields is to use action's submitEmptyText config. But it's not working in current version (ExtJS4.0.2a).
Another options is to override component's getSubmitValue() method and return null if this field is empty, this way it won't be included into submit fields.
{
xtype: 'combo',
getSubmitValue: function(){
var value = this.getValue();
if(Ext.isEmpty(value)) {
return null;
}
return value;
}
}
Instead of using form's submit, directly call Ext.Ajax.request(...) with the url, method type (GET/POST) and params (and any other options as explained in the call documentation).
To generate params, iterate over the form fields and check for null value before adding to params.
This bug is present in ExtJS 4.0.7 too.
As Molecule Man pointed:
Actualy, the right way to not submit empty fields is to use action's submitEmptyText config. But it's not working in current version (ExtJS4.0.2a).
A possible solution to fix this bug is by overriding 2 functions, getValues in "Ext.form.Basic" (where the bug is) and createForm (to create our basic form) in "Ext.form.Panel" by extension in the following way:
Ext.define("My.form.Basic", {
alias: "form.mybasic",
extend: "Ext.form.Basic",
getValues: function(asString, dirtyOnly, includeEmptyText, useDataValues) {
var values = {};
this.getFields().each(function(field) {
if (!dirtyOnly || field.isDirty()) {
var data = field[useDataValues ? "getModelData" : "getSubmitData"](includeEmptyText);
if (Ext.isObject(data)) {
var isArray = Ext.isArray;
Ext.iterate(data, function(name, val) {
if (includeEmptyText && val === "") {
val = field.emptyText || "";
}
if (includeEmptyText || ((!isArray(val) && val !== "") || (isArray(val) && val.length !== 0))) {
if (name in values) {
var bucket = values[name];
if (!isArray(bucket)) {
bucket = values[name] = [bucket];
}
if (isArray(val)) {
values[name] = bucket.concat(val);
}
else {
bucket.push(val);
}
}
else {
values[name] = val;
}
}
});
}
}
});
if (asString) {
values = Ext.Object.toQueryString(values);
}
return values;
}
});
Ext.define("My.form.Panel", {
alias: "form.mypanel",
extend: "Ext.form.Panel",
createForm: function() {
return Ext.create("My.form.Basic", this, Ext.applyIf({listeners: {}}, this.initialConfig));
}
});
The code is copied from the ext source code. The only change is inside the iteration of each field: introduced the following wrapping "if":
if (includeEmptyText || ((!isArray(val) && val !== "") || (isArray(val) && val.length !== 0)))
I am a bit late but, better later than never...