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Check if all elements in a list are identical
... explanation of alternatives. Can you please double check your performance table - is it all in msec, and are the numbers in the correct cells?
– max
Oct 2 '10 at 8:26
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When creating HTML emails, should we use html, head, body tags?
...s on or not. Unfortunately, you can’t control that in a webmail setting. Tables and inline styles are your friends. Your best bet is to test in as many webmail and desktop clients as you can.
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What happened to console.log in IE8?
...d: trap,
count: trap,
exception: trap,
table: trap
};
}
})(null); // to define a fallback function, replace null with the name of the function (ex: alert)
Some extra info
The line var args = Array.prototype.slice.call(arguments); creates an Array f...
How do I safely pass objects, especially STL objects, to and from a DLL?
...a plain C interface using extern "C", since the C ABI is well-defined and stable.
If you really, really want to pass C++ objects across a DLL boundary, it's technically possible. Here are some of the factors you'll have to account for:
Data packing/alignment
Within a given class, individual dat...
CSS: Set a background color which is 50% of the width of the window
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Thanks, it helped me to achieve this effect on a table: jsfiddle.net/c9kp2pde
– user2015707
Apr 22 '15 at 15:54
12
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How can I wait for set of asynchronous callback functions?
...ng a promise polyfill), then you can use ES6-specified promises. See this table for browser support. Promises are supported in pretty much all current browsers, except IE.
If doAjax() returns a promise, then you can do this:
var promises = [];
for (var i = 0; i < 10; i++) {
promises.push(...
Use jQuery to change an HTML tag?
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Once a dom element is created, the tag is immutable, I believe. You'd have to do something like this:
$(this).replaceWith($('<h5>' + this.innerHTML + '</h5>'));
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mongodb: insert if not exists
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You may use Upsert with $setOnInsert operator.
db.Table.update({noExist: true}, {"$setOnInsert": {xxxYourDocumentxxx}}, {upsert: true})
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Is it possible to send a variable number of arguments to a JavaScript function?
...%s dog.', ...arr); is not yet supported. You can find an ES6 compatibility table here.
Note also the use of for...of, another ES6 addition. Using for...in for arrays is a bad idea.
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Initialize class fields in constructor or at declaration?
...l/et al
I always think of the field listing at the top of a class as the table of contents (what is contained herein, not how it is used), and the constructor as the introduction. Methods of course are chapters.
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