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How to calculate the number of occurrence of a given character in each row of a column of strings?
I have a data.frame in which certain variables contain a text string. I wish to count the number of occurrences of a given character in each individual string.
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Get value of a string after last slash in JavaScript
...the series of characters not containing a slash" ([^/]*) at the end of the string ($). Then it grabs the matched characters from the returned match object by indexing into it ([0]); in a match object, the first entry is the whole matched string. No need for capture groups.
Live example
Using lastI...
Capitalize words in string [duplicate]
What is the best approach to capitalize words in a string?
21 Answers
21
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How do you save/store objects in SharedPreferences on Android?
...Object', etc.
Editor prefsEditor = mPrefs.edit();
Gson gson = new Gson();
String json = gson.toJson(myObject);
prefsEditor.putString("MyObject", json);
prefsEditor.commit();
To retrieve:
Gson gson = new Gson();
String json = mPrefs.getString("MyObject", "");
MyObject obj = gson.fromJson(json, My...
How do I make the first letter of a string uppercase in JavaScript?
How do I make the first letter of a string uppercase, but not change the case of any of the other letters?
94 Answers
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How to create a drop-down list?
...n = findViewById(R.id.spinner1);
//create a list of items for the spinner.
String[] items = new String[]{"1", "2", "three"};
//create an adapter to describe how the items are displayed, adapters are used in several places in android.
//There are multiple variations of this, but this is the basic var...
CharSequence VS String in Java?
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Strings are CharSequences, so you can just use Strings and not worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.
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Create an enum with string values
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TypeScript 2.4
Now has string enums so your code just works:
enum E {
hello = "hello",
world = "world"
};
????
TypeScript 1.8
Since TypeScript 1.8 you can use string literal types to provide a reliable and safe experience for named st...
'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of
...rt answer:
<key>CFBundleIconFiles</key>
<array>
<string>icon@2x.png</string>
<string>icon.png</string>
<string>Icon-Small.png</string>
<string>Icon-Small@2x.png</string>
<string>Default.png</string>
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What's NSLocalizedString equivalent in Swift?
Is there an Swift equivalent of NSLocalizedString(...) ?
In Objective-C , we usually use:
15 Answers
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