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Checking if a key exists in a JavaScript object?
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Checking for undefined-ness is not an accurate way of testing whether a key exists. What if the key exists but the value is actually undefined?
var obj = { key: undefined };
obj["key"] !== undefined // false, but the key exists!
You should instead use the in operator:
"key" ...
Send email using the GMail SMTP server from a PHP page
...t_Mailer::newInstance($transport);
$message = Swift_Message::newInstance('Test Subject')
->setFrom(array('abc@example.com' => 'ABC'))
->setTo(array('xyz@test.com'))
->setBody('This is a test mail.');
$result = $mailer->send($message);
?>
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Defining static const integer members in class definition
...t the call to std::min, the code compiles and links just fine (even though test::N is also referenced on the previous line).
Any idea as to what's going on?
std::min takes its parameters by const reference. If it took them by value you'd not have this problem but since you need a reference you al...
How to run a PowerShell script
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Type:
powershell -executionpolicy bypass -File .\Test.ps1
NOTE: Here Test.ps1 is the PowerShell script.
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Make maven's surefire show stacktrace in console
I'd like to see the stacktrace of unit tests in the console. Does surefire support this?
3 Answers
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How remove word wrap from textarea?
...glish source is here) that says IE 4.0 and Netscape 2.0 support it. I also tested it in FF 3.0.7 where it works as supposed. Things have changed here, SELFHTML is now a wiki and the english source link is dead.
EDIT2: If you want to be sure every browser supports it, you can use CSS to change wrap ...
Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?
...h Jquery 1.11.2 in Firefox with locally hosted files. .attr does. I've not tested more fully. Here's the code: ``` personContent.find("[data-name='" + pass.name + "']").children('input').attr('checked', true); ```
– Andrew Downes
Mar 27 '15 at 10:27
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How to impose maxlength on textArea in HTML using JavaScript
...');
for(var i = 0, l = txts.length; i < l; i++) {
if(/^[0-9]+$/.test(txts[i].getAttribute("maxlength"))) {
var func = function() {
var len = parseInt(this.getAttribute("maxlength"), 10);
if(this.value.length > len) {
alert('Maximum length exceeded: ...
What is the fastest integer division supporting division by zero no matter what the result is?
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The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl f
.type f, @function
f:
pushl %ebp
xorl %eax, %eax
movl %esp, %ebp
movl 12(%ebp), %edx
testl %edx, %edx
sete %al
ad...
Inserting multiple rows in mysql
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BEGIN;
INSERT INTO test_b (price_sum)
SELECT price
FROM test_a;
INSERT INTO test_c (price_summ)
SELECT price
FROM test_a;
COMMIT;
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