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php is null or empty?

... is an empty string, false is a boolean, $a = 0; is an integer and null is from type null. What OP is telling is that PHP will thread them as "same" in value, but not as "same" in type. So a strict === check will also check for type and fail if you use different ones. That's the reason you should be...
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How to get the URL without any parameters in JavaScript?

... This is possible, but you'll have to build it manually from the location object: location.protocol + '//' + location.host + location.pathname share | improve this answer ...
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Center a 'div' in the middle of the screen, even when the page is scrolled up or down?

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split string only on first instance - java

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HTML Script tag: type or language (or omit both)?

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Hide div after a few seconds

...be added to queue) return this.animate({delay:1}, time, callback); } From http://james.padolsey.com/javascript/jquery-delay-plugin/ (Allows chaining of methods) share | improve this answer ...
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Bootstrap Dropdown with Hover

...he 'hover' one. To fix this, remove the data-toggle="dropdown" attributes from the child <a> elements, which will prevent the click opening the duplicate dropdown – Xcalibur Sep 11 '17 at 6:51 ...
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How to see the changes in a Git commit?

...st one commit id Copy commit id. Now we use two methods to list changes from a specific commit, Method 1: git diff commit_id^! #commit id something like this 1c6a6000asad012 Method 2: git show commit_id For example: git show 1c6a600a ...
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Finding element's position relative to the document

...fset (3rd-party script) is interesting and it seems to leverage approaches from the other answers here. Example: var offset = require('document-offset') var target = document.getElementById('target') console.log(offset(target)) // => {top: 69, left: 108} ...
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The simplest way to comma-delimit a list?

...s to do this: The join method on String. A joining collector for streams from the Collectors class. The StringJoiner class. Example: // Util method for strings and other char sequences List<String> strs = Arrays.asList("1", "2", "3"); String listStr1 = String.join(",", strs); // For any ...