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What is the scope of variables in JavaScript?
...function f() {
function g() {
console.log(x)
}
let x = 1
g()
}
f() // 1 because x is hoisted even though declared with `let`!
Function parameter names
Function parameter names are scoped to the function body. Note that there is a slight complexity to this. Functions dec...
How to wait for all goroutines to finish without using time.Sleep?
...
175
You can use sync.WaitGroup. Quoting the linked example:
package main
import (
"net/h...
FB OpenGraph og:image not pulling images (possibly https?)
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105
I ran into the same problem and reported it as a bug on the Facebook developer site. It seems ...
Python: List vs Dict for look up table
I have about 10million values that I need to put in some type of look up table, so I was wondering which would be more efficient a list or dict ?
...
How to change a django QueryDict to Python Dict?
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13 Answers
13
Active
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How to create a sub array from another array in Java?
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313
You can use
JDK > 1.5
Arrays.copyOfRange(Object[] src, int from, int to)
Javadoc
J...
How to make a new line or tab in XML (eclipse/android)?
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185
Add \t for tab and \n for new line.
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How to display length of filtered ng-repeat data
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For Angular 1.3+ (credits to @Tom)
Use an alias expression (Docs: Angular 1.3.0: ngRepeat, scroll down to the Arguments section):
<div ng-repeat="person in data | filter:query as filtered">
</div>
For Angular prior to 1.3...
Calculate last day of month in JavaScript
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var month = 0; // January
var d = new Date(2008, month + 1, 0);
alert(d); // last day in January
IE 6: Thu Jan 31 00:00:00 CST 2008
IE 7: Thu Jan 31 00:00:00 CST 2008
IE 8: Beta 2: Thu Jan 31 00:00:00 CST 2008
Opera 8.54: ...
Convert hex color value ( #ffffff ) to integer value
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180
The real answer is to use:
Color.parseColor(myPassedColor) in Android, myPassedColor being th...