$(document).ready(function(){ $('.button').click(function(){var href = $(this).val();$.session.set("yoursessioname", "storevalue");}) });
alert($.session.get("yoursessioname"));Category: value
how to square a value in javascript
// Use Math.pow(a,b); where a is your value and b is the exponent
var num = Math.pow(4, 2);
//num returns 16how to set value in array react hook usestate
const[array,setArray]= useState([
{id: 1, value: "a string", othervalue: ""},
{id: 2, value: "another string", othervalue: ""},
{id: 3, value: "a string", othervalue: ""},
])
const updateItem =(id, whichvalue, newvalue)=> {
var index = array.findIndex(x=> x.id === id);
let g = array[index]
g[whichvalue] = newvalue
if (index === -1){
// handle error
console.log('no match')
}
else
setArray([
array.slice(0,index),
g,
array.slice(index+1)
]
);
}
//how to use the function
onPress={()=>updateItem(2,'value','ewfwf')}
onPress={()=>updateItem(1,'othervalue','ewfwf')}
/*
the first input of the function is the id of the item
the second input of the function is the atrribute that you wish to change
the third input of the function is the new value for that attribute
It's a pleasure :0
~atlas
*/
setTheArray([theArray, newElement]);
const {useState, useCallback} = React;
function Example() {
const [theArray, setTheArray] = useState([]);
const addEntryClick = () => {
setTheArray([theArray, `Entry ${theArray.length}`]);
};
return [
<input type="button" onClick={addEntryClick} value="Add" />,
<div>{theArray.map(entry =>
<div>{entry}</div>
)}
</div>
];
}
ReactDOM.render(
<Example />,
document.getElementById("root")
);how to set an attribute to ignore null value json c#
[JsonProperty(NullValueHandling=NullValueHandling.Ignore)]
// or
[JsonProperty("property_name", NullValueHandling=NullValueHandling.Ignore)]
// or for all properties in a class
[JsonObject(ItemNullValueHandling = NullValueHandling.Ignore)]how to set default value in input field in angularjs
<input ng-model="searchText" ng-init="searchText ='can you see me'"></input>how to set dropdown value in textbox using jquery
$('#chosen_a').change(function(){
//get the selected option's data-id value using jquery `.data()`
var criteria_rate = $(':selected',this).data('id');
//populate the rate.
$('.criteria_rate').val(criteria_rate);
});how to set html label value in jquery
$('#lblName').text('New Text');how to remove key value pair from object in javascript
delete object.keyname;
var obj = {a: 5, b: 3};
delete obj["a"];
console.log(obj); // {b: 3}how to remove key value pair from object js
var person = {"first_name": "Billy","last_name": "Johnson"};
delete person.last_name; //delete last_name propertyhow to remove particular value in dictionary in nodehs
delete myObj["SomeProperty"];
delete myObj.SomeProperty;