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if (key in object) or if(object.hasOwnProperty(key)
...a given name, you can use the in operator. For example:
var book = {
title: "High Performance JavaScript",
publisher: "Yahoo! Press"
};
alert(book.hasOwnProperty("title")); //true
alert(book.hasOwnProperty("toString")); //false
alert("title" in book); //true
alert("toString" in book);...
ng-repeat :filter by single field
... object hierarchy. For example, if you want to filter on 'thing.properties.title', you can do the following:
<div ng-repeat="thing in things | filter: { properties: { title: title_filter } }">
You can also filter on multiple properties of an object just by adding them to your filter object:...
How does a Linux/Unix Bash script know its own PID?
I have a script in Bash called Script.sh , and it needs to know its own PID (i.e. I need to get PID inside the Script.sh )
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Getting “Cannot read property 'nodeType' of null” when calling ko.applyBindings
...ng because I was trying to bind an HTML element before it was created.
My script was loaded on top of the HTML (in the head) but it needed to be loaded at the bottom of my HTML code (just before the closing body tag).
Thanks for your attention James Allardice.
A possible workaround is using defer...
TypeScript sorting an array
... the same, this is an example of one that can sort by both date(number) or title(string):
if (sortBy === 'date') {
return n1.date - n2.date
} else {
if (n1.title > n2.title) {
return 1;
}
if (n1.title < n2.title) {
return -1;
...
Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
...
Almost certainly, your reuse identifier "title" is incorrect.
We can see from the UITableView.h method signature of dequeueReusableCellWithIdentifier that the return type is an Implicitly Unwrapped Optional:
func dequeueReusableCellWithIdentifier(identifier: Strin...
How can I show line numbers in Eclipse?
...Original answer (March 2009)
To really have it by default, you can write a script which ensure, before launching eclipse, that:
[workspace]\.metadata\.plugins\org.eclipse.core.runtime\.settings\org.eclipse.ui.editors.prefs does contain:
lineNumberRuler=true
(with [workspace] being the root director...
Semicolons superfluous at the end of a line in shell scripts?
I have a shell script which contains the following:
5 Answers
5
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Is there a way to rename an Xcode 4 scheme?
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Click once to select it. Then again click on selected title to get to edit mode.
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Prompt for user input in PowerShell
...ts | gm). The result is a Dictionary where the key is the name of a FieldDescription object used in the prompt. To access the result for the first prompt in the linked example you would type: $results['String Field'].
To access information without invoking a method, leave the parentheses off:
PS&g...