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How to check if a string “StartsWith” another string?

...h. Once you've shimmed the method (or if you're only supporting browsers and JavaScript engines that already have it), you can use it like this: "Hello World!".startsWith("He"); // true var haystack = "Hello world"; var prefix = 'orl'; haystack.startsWith(prefix); // false ...
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Microsecond timing in JavaScript

...er of microseconds in the fractional (e.g. a value of 1000.123 is 1 second and 123 microseconds). now() is monotonically increasing. This is important as Date.getTime() can possibly jump forward or even backward on subsequent calls. Notably, if the OS's system time is updated (e.g. atomic clock sy...
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How to compare versions in Ruby?

How to write a piece of code to compare some versions strings and get the newest? 8 Answers ...
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Linear Layout and weight in Android

I always read about this funny weight value in the Android documentations. Now I want to try it for the first time but it isn't working at all. ...
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How to change the color of an svg element?

I want to use this technique http://css-tricks.com/svg-fallbacks/ and change the svg color but so far I haven't been able to do so. I put this in the css but my image is always black, no matter what. My code: ...
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Android: How to change CheckBox size?

... You just need to set the related drawables and set them in the checkbox: <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="new checkbox" android:background="@drawable/my_checkbox_background" and...
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How to enable local network users to access my WAMP sites?

First of all, I read at least 20 articles about this topic, and not one of them can match up the scenario and I screwed up the process numerous times. So I turn help by offering my specific scenario if any help will be appreciated. ...
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Frequency table for a single variable

One last newbie pandas question for the day: How do I generate a table for a single Series? 4 Answers ...
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How to wait in a batch script? [duplicate]

I am trying to write a batch script and trying to wait 10 seconds between 2 function calls. The command: 6 Answers ...
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?

...ce a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it. ...