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jQuery: Get selected element tag name

... You can call .prop("tagName"). Examples: jQuery("<a>").prop("tagName"); //==> "A" jQuery("<h1>").prop("tagName"); //==> "H1" jQuery("<coolTagName999>").prop("tagName"); //==> "COOLTAGNAME999" If writing ...
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Is $(document).ready necessary?

...saw this question in stackoverflow but do not feel that it was answered at all. 5 Answers ...
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Difference between “git add -A” and “git add .”

The command git add [--all|-A] appears to be identical to git add . . Is this correct? If not, how do they differ? 11 An...
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Should the hash code of null always be zero, in .NET

...code. Returning 0 or -1 for null, so long as you choose one and return it all the time, will work. Obviously, non-null hash codes should not return whatever value you use for null. Similar questions: GetHashCode on null fields? What should GetHashCode return when object's identifier is null? Th...
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Reading output of a command into an array in Bash

...tput of a command in an array, with one line per element, there are essentially 3 ways: With Bash≥4 use mapfile—it's the most efficient: mapfile -t my_array < <( my_command ) Otherwise, a loop reading the output (slower, but safe): my_array=() while IFS= read -r line; do my_array+...
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How to load up CSS files using Javascript?

... Here's the "old school" way of doing it, which hopefully works across all browsers. In theory, you would use setAttribute unfortunately IE6 doesn't support it consistently. var cssId = 'myCss'; // you could encode the css path itself to generate id.. if (!document.getElementById(cssId)) { ...
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Vim: How to insert in visual block mode?

...capital I. Lowercase i will not work. Then type the things you want and finally to apply it to all lines, press Esc twice. If this doesn't work... Check if you have +visualextra enabled in your version of Vim. You can do this by typing in :ver and scrolling through the list of features. (You migh...
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What is the difference between '>' and a space in CSS selectors?

...o scenarios div > span { } vs. div span { } Here, the (space) selects all the all the <span> elements inside <div> element even if they are nested inside more than one element. The > selects all the children of <div> element but if they are not inside another element. Take...
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Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events

...son for this maybe because you try to set a column to NOT NULL when it actually already has NULL values. share | improve this answer | follow | ...
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Object.getOwnPropertyNames vs Object.keys

... There is a little difference. Object.getOwnPropertyNames(a) returns all own properties of the object a. Object.keys(a) returns all enumerable own properties. It means that if you define your object properties without making some of them enumerable: false these two methods will give you the sa...