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How should I call 3 functions in order to execute them one after the other?
...e this is equivalent to the following:
window.setTimeout(function() {
alert("!");
// set another timeout once the first completes
window.setTimeout(function() {
alert("!!");
}, 1000);
}, 3000); // longer, but first
Here's a general asynchronous looping function. It will ca...
“Variable” variables in Javascript?
...ng eval():
var data = "testVariable";
eval("var temp_" + data + "=123;");
alert(temp_testVariable);
Or using the window object:
var data = "testVariable";
window["temp_" + data] = 123;
alert(window["temp_" + data]);
http://www.hiteshagrawal.com/javascript/dynamic-variables-in-javascript
...
image.onload event and browser cache
I want to create an alert box after an image is loaded, but if the image is saved in the browser cache, the .onload event will not be fired.
...
What is this 'Lambda' everyone keeps speaking of?
... {
if (numbers[i] % 2 === 0) {
even.push(numbers[i]);
}
}
alert(even);
// Using the filter method
even = [1, 2, 3, 4].filter(function (number) {
return number % 2 === 0;
});
alert(even);
Code execution delay
In some environments, in which the concept of event is available, ...
Check if a variable is a string in JavaScript
... is a String";
var stringObject = new String( "This is a String Object" );
alert(typeof booleanValue) // displays "boolean"
alert(typeof numericalValue) // displays "number"
alert(typeof stringValue) // displays "string"
alert(typeof stringObject) // displays "object"
Example from this webpage. (E...
How to append something to an array?
...ar ar1 = [1, 2, 3];
var ar2 = [4, 5, 6];
var ar3 = ar1.concat(ar2);
alert(ar1);
alert(ar2);
alert(ar3);
The concat does not affect ar1 and ar2 unless reassigned, for example:
var ar1 = [1, 2, 3];
var ar2 = [4, 5, 6];
ar1 = ar1.concat(ar2);
alert(ar1);
Lots of great i...
How to implement a confirmation (yes/no) DialogPreference?
...
That is a simple alert dialog, Federico gave you a site where you can look things up.
Here is a short example of how an alert dialog can be built.
new AlertDialog.Builder(this)
.setTitle("Title")
.setMessage("Do you really want to whatever?...
typeof for RegExp
...
You can use instanceof operator:
var t = /^foo(bar)?$/i;
alert(t instanceof RegExp);//returns true
In fact, that is almost the same as:
var t = /^foo(bar)?$/i;
alert(t.constructor == RegExp);//returns true
Keep in mind that as RegExp is not a primitive data type, it is not pos...
Is right click a Javascript event?
...if ("button" in e) // IE, Opera
isRightMB = e.button == 2;
alert("Right mouse button " + (isRightMB ? "" : " was not") + "clicked!");
}
window.oncontextmenu - MDC
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How to obtain the query string from the current URL with JavaScript?
... url = window.location.search;
url = url.replace("?", ''); // remove the ?
alert(url); //alerts ProjectID=462 is your case
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