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How to find keys of a hash?
I know in javascript Objects double as hashes but i have been unable to find a built in function to get the keys
9 Answers...
google chrome extension :: console.log() from background page?
If I call console.log('something'); from the popup page, or any script included off that it works fine.
11 Answers
...
best way to get the key of a key/value javascript object
...You would iterate inside the object with a for loop:
for(var i in foo){
alert(i); // alerts key
alert(foo[i]); //alerts key's value
}
Or
Object.keys(foo)
.forEach(function eachKey(key) {
alert(key); // alerts key
alert(foo[key]); // alerts value
});
...
Do something if screen width is less than 960 px
... screen width is less than 960 pixels? The code below always fires the 2nd alert, regardless of my window size:
10 Answers...
Presenting a UIAlertController properly on an iPad using iOS 8
With iOS 8.0, Apple introduced UIAlertController to replace UIActionSheet . Unfortunately, Apple didn't add any information on how to present it. I found an entry about it on hayaGeek's blog, however, it doesn't seem to work on iPad. The view is totally misplaced:
...
Ajax tutorial for post and get [closed]
...ar menuId = $("ul.nav").first().attr("id");
var request = $.ajax({
url: "script.php",
type: "POST",
data: {id : menuId},
dataType: "html"
});
request.done(function(msg) {
$("#log").html( msg );
});
request.fail(function(jqXHR, textStatus) {
alert( "Request failed: " + textStatus );
});...
ATL COM开发入门（一）（JS调用ActiveX/COM组件） - C/C++ - 清泛网 - 专注C/C++及内核技术
...页进行测试：
<HTML>
<HEAD>
<TITLE>COM接口测试页</TITLE>
<script type="text/javascript">
function Test(){
var retStr = AtlDemoObj.ConcatStr(document.all.ipt1.value, document.all.ipt2.value);
alert(retStr);
}
</script>
</HEAD>
<BODY>
<object id="AtlDemoObj" classid="clsid:B0...
onsubmit阻止表单提交 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script language="javascript">
//--->
function checksubmit()
{
if (document.form1.myname.value=="")
{
alert("请输入开始数值！");
document.form1.myname.focus();
return ...
Find out whether radio button is checked with JQuery?
...('#element').click(function() {
if($('#radio_button').is(':checked')) { alert("it's checked"); }
});
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How can I get the ID of an element using jQuery?
...ument).ready(function() {
console.log($('#test').attr('id'));
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="test"></div>
Or through the DOM:
$('#test').get(0).id;
or even :
$('#test')[0].id;
and reaso...