jQuery: this.attr() not a function?
Use: $(this).attr instead of this.attr This forces it into the context of jQuery.
Use: $(this).attr instead of this.attr This forces it into the context of jQuery.
Posting my own answer so this doesn’t stay open: Version 4 models (stable released on 2015-03-25) now exposes a hydrate() method. None of the fields will be marked as dirty initially, meaning a call to save() will do nothing until a field is mutated. https://github.com/LearnBoost/mongoose/blob/41ea6010c4a84716aec7a5798c7c35ef21aa294f/lib/model.js#L1639-1657 It is very important to note that this is intended … Read more
The static library is a collection of one or more object files, with an index to allow rapid searching. There are some minor differences in how the compiler deals with them. With an object file you link like this: gcc f1.o f2.o -o myexe with libraries you can also do that: gcc f1.o libf2.a -o … Read more
The .find(‘selector’) method is basically a recusive version of .children(), and will find any descendant object that matched the selector, as opposed to .children() which only finds objects in the first level of descendants. 2nd EDIT (I phrased badly the first time, and messed up the code a bit!): Ok, I don’t think this functionality … Read more
You can take Array.map(). This method returns an array with the elements from the callback returned. It expect that all elements return something. If not set, undefined will be returned. var students = [{ name: ‘Nick’, achievements: 158, points: 14730 }, { name: ‘Jordan’, achievements: ‘175’, points: ‘16375’ }, { name: ‘Ramon’, achievements: ’55’, points: … Read more
In Python 2.x, when you inherit from “object” you class is a “new style” class – that was implemented back in Python 2.2 (around 2001) – The non inheriting from “object” case creates an “old style” class, that was actually maintained only for backwards compatibility. The great benefit of “new style” classes is the unification … Read more
In underscore.js you can use like, _.extend(firstObj, secondObj); In jQuery, you can use, $.extend({},firstObj,secondObj); In pure javascipt, you can merge n number of objects by using this function: function mergeObjects() { var resObj = {}; for(var i=0; i < arguments.length; i += 1) { var obj = arguments[i], keys = Object.keys(obj); for(var j=0; j < … Read more
To do something when cell is not empty add: if cell.value: which in python is the same as if cell value is not None (i.e.: if not cell.value == None:) Note to avoid checking empty cells you can use worksheet.get_highest_row() and worksheet.get_highest_column() Also I found it useful (although might not be a nice solution) if … Read more
You can simply use array.filter with indexOf to check the matching element in the next array. var arr = serviceList.filter(item => activeIds.indexOf(item.id) === -1); DEMO let activeIds = [202, 204] let serviceList = [{ “id”:201, “title”:”a” }, { “id”:202, “title”:”a” }, { “id”:203, “title”:”c” }, { “id”:204, “title”:”d” }, { “id”:205, “title”:”e” }]; let arr … Read more