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How do I get the value of a textbox using jQuery?
..."txtEmail" class="textbox" value="1">
$(document).ready(function(){
alert($("#txtEmail").val());
alert($(".textbox").val());//Not recommended
});
Using class name for getting any text-box control value can return other or wrong value as same class name can also be defined for any other ...
Get div height with plain JavaScript
...
jsFiddle
var element = document.getElementById('element');
alert(element.offsetHeight);
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Using the HTML5 “required” attribute for a group of checkboxes?
... @Clijsters the question is about a HTML5 way to do it - not with Javascript (of course, various solutions are possible in Javascript)
– Zabba
Apr 10 '18 at 0:18
7
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Check whether a string matches a regex in JS
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You can use match() as well:
if (str.match(/^([a-z0-9]{5,})$/)) {
alert("match!");
}
But test() seems to be faster as you can read here.
Important difference between match() and test():
match() works only with strings, but test() works also with integers.
12345.match(/^([a-z0-9]{5,})$/...
Get selected text from a drop-down list (select box) using jQuery
...
This works for me
$("#dropdownid").change(function() {
alert($(this).find("option:selected").text());
});
If the element created dynamically
$(document).on("change", "#dropdownid", function() {
alert($(this).find("option:selected").text());
});
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return, return None, and no return at all?
... of the prisoners. If we don't find the prisoner with a knife, we raise an alert. This could be done in many different ways and using return is probably not even the best way, but it's just an example to show how to use return for exiting a function.
def find_prisoner_with_knife(prisoners):
for...
What's the difference between String(value) vs value.toString()
...ethod unavailable:
o.valueOf = null;
try {
String(o);
} catch (e) {
alert(e); // TypeError
}
If you want to know more about this mechanism I would recommend looking at the ToPrimitive and the ToString internal operations.
I also recommend reading this article:
Object-to-Primitive Convers...
jQuery get value of selected radio button
...:checked.
$(function(){
$("#submit").click(function() {
alert($("input[name=q12_3]:checked").val());
});
});
Note that the above code is not the same as using
.is(":checked").
jQuery's is()
function returns a boolean (true or false) and not an
element.
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Add 10 seconds to a Date
...ndle wrap-around cases:
var d;
d = new Date('2014-01-01 10:11:55');
alert(d.getMinutes() + ':' + d.getSeconds()); //11:55
d.setSeconds(d.getSeconds() + 10);
alert(d.getMinutes() + ':0' + d.getSeconds()); //12:05
...
How to add and get Header values in WebApi
...ername': 'test','password':'123' },
success: function (data) {
alert(data);
},
failure: function (result) {
alert('Error: ' + result);
}
});
Hope this helps someone ...
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