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How to get the caret column (not pixels) position in a textarea, in characters, from the start?

... With Firefox, Safari (and other Gecko based browsers) you can easily use textarea.selectionStart, but for IE that doesn't work, so you will have to do something like this: function getCaret(node) { if (node.selectionStart) { return node.sel...
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What are the barriers to understanding pointers and what can be done to overcome them? [closed]

Why are pointers such a leading factor of confusion for many new, and even old, college level students in C or C++? Are there any tools or thought processes that helped you understand how pointers work at the variable, function, and beyond level? ...
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AWK: Access captured group from line pattern

If I have an awk command 6 Answers 6 ...
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Why are Docker container images so large?

... As @rexposadas said, images include all the layers and each layer includes all the dependencies for what you installed. It is also important to note that the base images (like fedora:latest tend to be very bare-bones. You may be surprised by the number of dependencies your in...
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Is it a bad practice to use break in a for loop? [closed]

...sily-readable loops. If the body of your loop spans several screen lengths and has multiple nested sub-blocks, yes, you could easily forget that some code won't be executed after the break. If, however, the loop is short and to the point, the purpose of the break statement should be obvious. If a l...
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Is there a short contains function for lists?

...m not in list: # do something It's work fine for lists, tuples, sets and dicts (check keys). Note that this is an O(n) operation in lists and tuples, but an O(1) operation in sets and dicts. share | ...
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How to make graphics with transparent background in R using ggplot2?

... Updated with the theme() function, ggsave() and the code for the legend background: df <- data.frame(y = d, x = 1, group = rep(c("gr1", "gr2"), 50)) p <- ggplot(df) + stat_boxplot(aes(x = x, y = y, color = group), fill = "transparent" # for the...
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How can I style an Android Switch?

...ith holo theme. I want to style it slightly different, changing its colors and shape a bit for branding reasons. How does one go about this? I know it must be possible, as ive seen the difference between default ICS and Samsung's touchwiz theme ...
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Mercurial - all files that changed in a changeset?

... to list only files that have changed then you should be using "status command" The following will list the changes to files in revision REV hg status --change REV share | improve this answer ...
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How to add text inside the doughnut chart using Chart.js?

..., labelFontStyle : "normal", labelFontSize : 24, labelFontColor : "#666" and then in function drawPieSegments ctx.fillText(data[0].value + "%", width/2 - 20, width/2, 200); See this pull: https://github.com/nnnick/Chart.js/pull/35 here is a fiddle http://jsfiddle.net/mayankcpdixit/6xV78/ impl...