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How to check if function exists in JavaScript?
...lder versions of IE treat certain functions as objects, e.g. typeof window.alert === 'object'.
– Noyo
Sep 4 '13 at 13:51
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Regex using javascript to return just numbers
...var numberPattern = /\d+/g;
value = value.match( numberPattern ).join([]);
alert(value);
//Show: 675805714
Now you get the digits joined
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How to re-sign the ipa file?
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It's really easy to do from the command line. I had a gist of a script for doing this. It has now been incorporated into the ipa_sign script in https://github.com/RichardBronosky/ota-tools which I use daily. If you have any questions about using these tools, don't hesitate to ask.
The hea...
JavaScript OR (||) variable assignment explanation
... " messages.";
var noNewMessagesText = "Sorry, you have no new messages.";
alert((messages && newMessagesText) || noNewMessagesText);
Inside the alert, we check if messages is falsy, and if yes, then evaluate and return noNewMessagesText, otherwise evaluate and return newMessagesText. Sinc...
Rails 4: how to use $(document).ready() with turbo-links
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Here's what I do...
CoffeeScript:
ready = ->
...your coffeescript goes here...
$(document).ready(ready)
$(document).on('page:load', ready)
last line listens for page load which is what turbo links will trigger.
Edit...adding Javascript vers...
What's the best way to send a signal to all members of a process group?
...ll a whole process tree. What is the best way to do this using any common scripting languages? I am looking for a simple solution.
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How does “this” keyword work within a function?
...at's attached to an object
var foo = {};
foo.someMethod = function(){
alert(this);
}
When invoked as a method, this will be bound to the object the function/method is a part of. In this example, this will be bound to foo.
As A Function
If you have a stand alone function, the this variable ...
$(this).val() not working to get text from span using jquery
...nth").live("click", function () {
var monthname = $(this).text();
alert(monthname);
});
Or in jQuery 1.7+ use on() as live is deprecated:
$(document).on('click', '.ui-datepicker-month', function () {
var monthname = $(this).text();
alert(monthname);
});
.val() is for input typ...
List files with certain extensions with ls and grep
...tar.gz,zip} directly in a shell it works, but when put this inside a shell script latest=$(ls -I '.done' -tr ${pkgprefix}.{tar.gz,zip} | tail -1) I got an error message: ls: cannot access 'bamtools*.{tar.gz,zip}': No such file or directory, any smarter guy can refined the answer.
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Replace comma with newline in sed on MacOS?
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This is the only solution that works in a sed script.
– Firstrock
May 12 '14 at 19:12
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