When is post-decrement/increment vs. pre-decrement/increment used in real-life examples?
Date : March 29 2020, 07:55 AM
it fixes the issue The obvious is when you want the old value returned, you use post-increment. The more subtle things are that pre-increment should really never be slower and could be faster due to the lack of creating a temporary and returning the old value when using post-increment. set<int> ctr;
ctr.insert(1);
ctr.insert(10);
ctr.insert(12);
ctr.insert(15);
set<int>::iterator it = set.begin();
// Post-increment so the value returned to erase is that of the previous
// iteration (i.e. begin()), yet the iterator stays valid due to the local
// iterator being incremented prior to the erase call
ctr.erase(it++);
// Still valid iterator can be used.
cout << "Value: " << *it << "\n";
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Increment / decrement button In ExtJS
Date : March 29 2020, 07:55 AM
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What is the difference between variable post-increment/decrement and pre-increment/decrement in bash?
Date : March 29 2020, 07:55 AM
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Increment/Decrement when a radioButton is clicked jQuery
Date : March 29 2020, 07:55 AM
seems to work fine Check if any radio button is clicked in that group. Update your script to var financedDiv = Number($('.financed div').html().trim());
var NonfinancedDiv = Number($('.non-financed div').html().trim());
var cbxFinancedInvioces = $('#cbxFinancedInvoices');
var cbxUnfinancedInvoices = $('#cbxUnFinancedInvoices');
var checkVal = $("input[name='InvoiceStatus']:checked").val();
cbxFinancedInvioces.on('change', function () {
if (this.checked) {
financedDiv = financedDiv + 1;
$('.financed div').html(financedDiv);
if(checkVal) {
NonfinancedDiv = NonfinancedDiv - 1;
$('.non-financed div').html(NonfinancedDiv);
}
checkVal = true;
}
});
cbxUnfinancedInvoices.on('change', function () {
if (this.checked) {
NonfinancedDiv = NonfinancedDiv + 1;
$('.non-financed div').html(NonfinancedDiv);
if(checkVal) {
financedDiv = financedDiv - 1;
$('.financed div').html(financedDiv);
}
checkVal = true;
}
});
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How to make buttons that increment and decrement a value when clicked?
Date : March 29 2020, 07:55 AM
it should still fix some issue The document.write is the problem. It only works before the browser is done loading the page completely. After that, document.write doesn't work. It just deletes all of the existing page contents. Your first document.write is executed before you the page has loaded completely. This is why you should see the 0 next to the two buttons. var x = 0;
var span = document.querySelector('span'); // find the <span> element in the DOM
var increment = document.getElementById('increment'); // find the element with the ID 'increment'
var decrement = document.getElementById('decrement'); // find the element with the ID 'decrement'
increment.addEventListener('click', function () {
// this function is executed whenever the user clicks the increment button
span.textContent = x++;
});
decrement.addEventListener('click', function () {
// this function is executed whenever the user clicks the decrement button
span.textContent = x--;
});
<button id="increment">increment</button>
<button id="decrement">decrement</button>
<span>0</span>
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