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Is it necessary to write HEAD, BODY and HTML tags?
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Omitting the html, head, and body tags is certainly allowed by the HTML specs. The underlying reason is that browsers have always sought to be consistent with existing web pages, and the very early versions of HTML didn't define those elements. When HTML 2.0 first did, it was ...
Does “display:none” prevent an image from loading?
...tab of your browser's developer tools.
Note that if the browser is on a small CPU computer, not having to render the image (and layout the page) will make the whole rendering operation faster but I doubt this is something that really makes sense today.
If you want to prevent the image from loading...
How do I horizontally center an absolute positioned element inside a 100% width div? [duplicate]
...xample below, #logo is positioned absolutely and I need it to be horizontally centered within #header . Normally, I would do a margin:0 auto for relatively positioned elements but I am stuck here. Can someone show me the way?
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How to inspect FormData?
...oo, bar)To take any number of argument you could use the apply method and call it as such: console.log.apply(console, array).
But there is a new ES6 way to apply arguments with spread operator and iteratorconsole.log(...array).
Knowing this, And the fact that FormData and both array's has a Symbol....
How to convert a selection to lowercase or uppercase in Sublime Text
...eral strings selected in a file in Sublime Text and I want to convert them all to lowercase.
5 Answers
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Check whether a string matches a regex in JS
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Use regex.test() if all you want is a boolean result:
console.log(/^([a-z0-9]{5,})$/.test('abc1')); // false
console.log(/^([a-z0-9]{5,})$/.test('abc12')); // true
console.log(/^([a-z0-9]{5,})$/.test('abc123')); // true
...and ...
ORA-00979 not a group by expression
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You must put all columns of the SELECT in the GROUP BY or use functions on them which compress the results to a single value (like MIN, MAX or SUM).
A simple example to understand why this happens: Imagine you have a database like this:
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Remove CSS from a Div using JQuery
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This answer doesn't help all the case where you modify something on the fly for doing animation or complex rendering. The question was not about how to organize the CSS, but how to remove a CSS option.
– FMaz008
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How do I get AWS_ACCESS_KEY_ID for Amazon?
I'm totally new to AWS.
5 Answers
5
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How to add /usr/local/bin in $PATH on Mac
...se it's on the right hand side of an assignment, but in general, and especially on Macs with their tradition of spacy pathnames, expansions like $PATH should be double-quoted as "$PATH".
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