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How do I remove the first characters of a specific column in a table?
... this will fail for values with < 4 characters. You should add a case block to return the value of the column for < 4.
– Scott Ivey
Jun 11 '09 at 18:47
2
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Bootstrap: how do I change the width of the container?
...;#wrapper {width: 1000px;}
#wrapper .container {max-width: 100%; display: block;}</style>
<body>
<div id="wrapper">
<div class="container">
<div class="row">....
Now the ma
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
...erver reply with "ERROR 1045 (28000): Access denied for"... if a firewall block will get a timeout...
– Paulo H.
Dec 5 '11 at 4:49
...
How can I bind to the change event of a textarea in jQuery?
... if (textareaID.value.length) {
yourBtnID.style.display = 'inline-block';
}
});
HTML
<textarea id="textareaID"></textarea>
<button id="yourBtnID" style="display: none;">click me</div>
...
How can I iterate over files in a given directory?
...o in bytes data type so you cannot run endswith directly on it. This code block should be changed to directory = os.fsencode(directory_in_str) for file in os.listdir(directory): filename = os.fsdecode(file) if filename.endswith(".asm") or filename.endswith(".py"): ...
How to paste in a new line with vim?
...newise|, thus
this command can be used to put a yanked block as
new lines.
:[line]pu[t]! [x] Put the text [from register x] before [line]
(default current line).
Unfortunately it’s not shorter than your current solution unless you co...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...t is the $? variable hold? I can't Google search the answer because they block punctuation characters.
9 Answers
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Check if object exists in JavaScript
...ariable exists (unless you want to wrap every second line into a try-catch block).
The reason is Javascript has this notorious value of undefined which strikingly doesn't mean that the variable is not defined, or that it doesn't exist undefined !== not defined
var a;
alert(typeof a); // undefined ...
How can I setup & run PhantomJS on Ubuntu?
...
If bitbucket.org is blocked by your proxy npm install phantomjs --phantomjs_cdnurl=http://cnpmjs.org/downloads
– 79E09796
Nov 26 '15 at 17:38
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Running code in main thread from another thread
...
A condensed code block is as follows:
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
// things to do on the main thread
}
});
This does not involve passing down...