Assign a string but get back an object -the browser at play?

Given this tag:

<p id="myp">foo para

I know you're not supposed to, but if I assign a string to the style property of the corresponding DOM object, I can change its style:

let p = document.getElementById('myp'); = 'color: red'; //assign a string should now point to a string, I suppose. But if I then ask for the style property, I get an object rather than a string:

console.log(; //get back an object

Normally in JavaScript if I assign a string to a variable or object property, I expect the value to still be a string when I ask for that value. So is the browser jumping in to change this, or is there a JavaScript mechanism at play?

document.getElementById returns an HTMLElement, and if you look at it's prototype

we see that style is not a "normal" property, but actually a getter and setter.

Obviously this is a super simplified example, but essentially it would be implemented something like:

  let element = {
        color: 'red',
        get style() {
            return { color: this.color }
        set style(s) {
            this.color = s.split(': ')[1]
    } = 'color: blue';

Cisco Customer Response Applications Editor Step Reference Guide, adding session attributes and variables 2-9. adding variables or assigning class to object 15-4. assigning Extended Get Digit String step 7-19. Get Digit String configuring voice browser parameters playing back text as speech 9-​29. Assigns a new value to the string, replacing its current contents. (1) string Copies str. (2) substring Copies the portion of str that begins at the character position subpos and spans sublen characters (or until the end of str, if either str is too short or if sublen is string::npos).

If you debug HTMLElement.prototype in the console, you can see that style is an accessor property. When you assign a value to it, instead of just overwriting the property in question it executes a setter method, which can override the value you passed. This is without a doubt in place to ensure that the style property is always an object (namely an instance of CSSStyleDeclaration), since a lot of things rely on that.

To overwrite the style attribute of the element, you can safely use p.setAttribute('style', 'color: red');

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Style of the p element is an object containing all of its styles, you need to select which style you want.

UPDATE: You can get your string back from the cssText also in the snippet. = 'color: red'; I believe this line is taken as: 'red'; 

let p = document.getElementById('myp'); = 'color: red';

<p id="myp">foo para<p>

ucimo-javascript/ at master · skolakoda/ucimo-javascript , Programming in browser vs. programming on file system Intro to data and binary numbers; Data types in Javascript. Boolean ( true i false ); Number; String (​text); Array; Object; Non-existing Project: How long I have to learn to become an expert; Project: Setup your business model Assign return value to a variable​. For a string class that is for use in a C++/CLI managed project, use System.String. Creating CString Objects from Standard C Literal Strings. You can assign C-style literal strings to a CString just as you can assign one CString object to another. Assign the value of a C literal string to a CString object. CString myString = _T("This is a test");

According to mozilla documentation

The property is used to get as well as set the inline style of an element. While getting, it returns a CSSStyleDeclaration object that contains a list of all styles properties for that element with values assigned for the attributes that are defined in the element's inline style attribute.


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{"version":3,"sources":["webpack:////tmp/frontend/node_modules , Details. There are no restrictions on the name given as x: it can be a non-syntactic name (see make.names).. The pos argument can specify the environment in which to assign the object in any of several ways: as -1 (the default), as a positive integer (the position in the search list); as the character string name of an element in the search list; or as an environment (including using sys.frame

{"version":3,"sources":["webpack:///webpack/bootstrap","webpack , Object.assign() is actually standardised, where as object spread is not yet. The only problem is browser support for the former and in future, the latter too. The only problem is browser support for the former and in future, the latter too.