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In Typescript, How to check if a string is Numeric
...9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected with NaN). Use:
isNaN(maybeNumber) // returns true if NaN, otherwise false
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How do you parse and process HTML/XML in PHP?
How can one parse HTML/XML and extract information from it?
30 Answers
30
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How to convert wstring into string?
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using std::wcout.imbue(locale) should do the job aswell, and it has the benefit that it does not change any global state.
– smerlin
Jan 26 '11 at 15:22
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Resize image proportionally with CSS? [duplicate]
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This works even if the img tag has a height and width attributes. +1
– Surreal Dreams
Jun 11 '12 at 19:48
66
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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
What's the difference between getPath() , getAbsolutePath() , and getCanonicalPath() in Java?
6 Answers
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What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?
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It should be possible with setTypeface() and Typeface.create():
convertView.setTypeface(Typeface.create("sans-serif-light", Typeface.NORMAL));
See Docs:
Create a typeface object given a family name, and option style
information. If null is passed for the na...
Replace one character with another in Bash
...lexity is worse than linear. A small test: x="$(tr -dc 'a-z \n' </dev/urandom | head -c1M)"; time y="$(tr ' ' \\- <<< "$x")"; time z="${x// /-}". With a string length of 1M (=2^20) tr took 0.04s and bash 5.0.11 took 17s. With 2M tr took 0.07s (expected) but bash took 69s (4 times as lon...
What is the meaning of “vnd” in MIME types?
Reading up on content providers, I keep wondering why both the category and type of Android MIME types are prefixed with vnd. For example:
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How to switch back to 'master' with git?
...nitely not tracked in the index, you can just remove the directory locally and you'll get it back when you git checkout branch1.
– Platinum Azure
Sep 14 '11 at 13:46
1
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What does mvn install in maven exactly do
I just started using Maven and I was told to do mvn install in a specific directory.
7 Answers
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