Linked Questions

463 votes

2 answers

513k views

First off, I'm using Cheerio for some DOM access and parsing with Node.js. Here's the situation: I have a function that I need to create an object. That object uses variables for both its keys and ...

123 votes

8 answers

62k views

Ok so I'm working away on a project in Nodes, and I've come across a small problem with the keys in object literals, I have the following set-up: var required = { directories : { this....

111 votes

4 answers

113k views

Is it at all possible to use variable names in object literal properties for object creation? Example function createJSON (propertyName){ return { propertyName : "Value"}; } var myObject = ...

69 votes

3 answers

83k views

Possible Duplicate: How do I add a property to a Javascript Object using a variable as the name? Use variable for property name in JavaScript literal? Is it possible to add a variable as the ...

28 votes

4 answers

29k views

I am creating a plugin for Jquery and need to have a variable as a key in an object. $(selector).animate({self.settings.direction: '+='+self.displacement+'px'}, "slow" , function () {}); this part ...

20 votes

1 answer

12k views

I would like to know if there is a clean way to set the value of a key from a string variable when using spread syntax in es6? Something like the following: let keyVar = 'newKey' let newObject = {...

21 votes

1 answer

21k views

I have an Enum: const ingredients = { BREAD_BOTTOM: 'BreadBottom', BREAD_TOP: 'BreadTop', MEAT: 'Meat', BACON: 'Bacon', CHEESE: 'Cheese', SALAD: 'Salad' }; ...

10 votes

7 answers

3k views

Consider the following var a = {foo: "bar"}; Equivalent to var a = {}; a.foo = "bar"; Equivalent to var a = {}; a['foo'] = "bar"; Equivalent to var a = {} var b = "foo"; a[b] = "bar"; Is it ...

8 votes

2 answers

8k views

I am attempting to add a variable key, with no luck. Here's what I got so far: mysql('translations',{ check: 'element_id', element_id: element_id, {'lang-'+lang_id}: value }); The ...

7 votes

2 answers

15k views

I am trying to set an array element as an object Property Simplified example: var array = ['a', 'b', 'c']; var obj = { array[1]: 'good' } Above causes an error. Update: In fact, I am passing the ...

6 votes

1 answer

9k views

I would like to define a set of constants, which I then use the values of in another javascript object. I have the below example. This however doesn't seem to work when I am trying to use 0 as a key ...

6 votes

2 answers

6k views

I'm looking for a simple syntax to allow me to create a new object with one property and set the value of that property. Here's an example. I'd love to be able to do something all on one line. let ...

4 votes

5 answers

705 views

I observed a very weird phenomena in javascript and I can't figure out why. Consider this example below state = "West Bengal" city = "Kolkata" country = "India" some_json = {country: {"city": city, "...

1 vote

2 answers

3k views

Fiddle var json = {name: 'chan'}; var variable = 'age'; $.extend(json, {[variable]: 35}); $('#result').html(JSON.stringify(json)); This method works on most popular browsers except IE, I need to ...

3 votes

1 answer

5k views

From an input field I am sending the value as an argument to the function that sets state. I have multiple input fields so would like to use their name (which is equal to their state key) to then use ...