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How to access the typed value of a child in an element

By : George Thomas
Date : August 01 2020, 07:00 AM
wish of those help You control the values
In react when you have an input you must control the state of that input.
code :
const myComp = () => {
  const [state, changeState] = useState('');
  return <input type="text" onChange={e => changeState(e.target.value)} value={state} />;

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Selecting only the first specifically-typed child of an element

By : RaT
Date : March 29 2020, 07:55 AM
wish helps you Try the first-of-type selector
code :
body > div:first-of-type
    margin: 0 auto 0 auto;
    width: 800px;

How to access a child of a child of an element by tagname

By : Holly Bomer
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , getElementsByTagName return an HTMLCollection, not and ELement.
You need to get the first index as
code :
var getInput = document.getElementById("parentElement").getElementsByTagName("form")[0].getElementsByTagName("input").length;
// getElementByTagName for first child elements works

var getForm = document.getElementById("parentElement").getElementsByTagName("form").length;
var output = document.getElementById("outputForm").innerHTML = getForm;

// getElementByTagName for second child elements doesn't work

var getInput = document.getElementById("parentElement").getElementsByTagName("form")[0].getElementsByTagName("input").length;
var output = document.getElementById("outputInput").innerHTML = getInput;
<div id="parentElement">
    First name: <input type="text"><br>
    Last name: <input type="text"><br>
<p id="outputForm"></p>
<p id="outputInput"></p>

How to access the typed-memory view element of a class declared in cython?

By : fitri yalni
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Your first issue is just that a memoryview doesn't have a useful __str__ function for print to use. You can either convert it to an object that does print nicely
code :
for i in range(b0.moves.shape[0]):
    print(b0.moves[i], end=' ') # need to have Cython set to use Python 3 syntax for this line

CSS / SCSS - Access child of child element with unknown child type

By : Jacob Kinzie
Date : March 29 2020, 07:55 AM
With these it helps Specifying the root element and just leaving a space means descendant, so
code :
.some-class i {
    color: grey;
 .some-class * i {
    color: grey;
  .some-class > * > i {
    color: grey;

javascript page element access from one child iframe to another child

By : David Thompson
Date : March 29 2020, 07:55 AM
will be helpful for those in need Retrieve Element value from other iframe:
This is your parent element:
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