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Remove whitespaces inside a string in javascript
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You can use Strings replace method with a regular expression.
"Hello World ".replace(/ /g, "");
The replace() method returns a new string with some or all matches of
a pattern replaced by a replacement. The pattern can be a string...
Best way to convert strings to symbols in hash
... (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?
31 Answers
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How do I convert a String to an InputStream in Java?
Given a string:
4 Answers
4
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Node.js Mongoose.js string to ObjectId function
Is there a function to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") .
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Firebase Storage How to store and Retrieve images [closed]
...s, you'll want to get the base64-encoded contents so you can store it as a string. Or even more convenient, you can store it as a data: url which is then ready to plop in as the src of an img tag (this is what the example does)!
2. For larger images
Firebase does have a 10mb (of utf8-encoded stri...
Truncate number to two decimal places without rounding
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Convert the number into a string, match the number up to the second decimal place:
function calc(theform) {
var num = theform.original.value, rounded = theform.rounded
var with2Decimals = num.toString().match(/^-?\d+(?:\.\d{0,2})?/)[0]
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Java Immutable Collections
...may point to the same data through which it can be changed.
e.g.
List<String> strings = new ArrayList<String>();
List<String> unmodifiable = Collections.unmodifiableList(strings);
unmodifiable.add("New string"); // will fail at runtime
strings.add("Aha!"); // will succeed
System....
Why does String.split need pipe delimiter to be escaped?
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String.split expects a regular expression argument. An unescaped | is parsed as a regex meaning "empty string or empty string," which isn't what you mean.
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Javascript: formatting a rounded number to N decimals
...s the same as 2.0000000000000. It's when you turn the rounded value into a string that you have make it display a certain number of digits.
You could just add zeroes after the number, something like:
var s = number.toString();
if (s.indexOf('.') == -1) s += '.';
while (s.length < s.indexOf('.')...
How to replace a string in a SQL Server Table Column
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It's this easy:
update my_table
set path = replace(path, 'oldstring', 'newstring')
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