JavaScript: Core Objects
JavaScript : Core Objects
List of JavaScript core objects
Name of the object | Version |
---|---|
Array Object | Implemented in JavaScript 1.1 |
Boolean Object | Implemented in JavaScript 1.1 |
Date Object | Implemented in JavaScript 1.0 |
Function Object | Implemented in JavaScript 1.1 |
Java | Implemented in JavaScript 1.2 |
JavaArray | Implemented in JavaScript 1.1 |
JavaClass | Implemented in JavaScript 1.1 |
Java | Implemented in JavaScript 1.1 |
JavaPackage | Implemented in JavaScript 1.1 |
Math Object | Implemented in JavaScript 1.0 |
netscape | Implemented in JavaScript 1.1 |
Number Object | Implemented in JavaScript 1.1 |
Object | Implemented in JavaScript 1.0 |
Packages | Implemented in JavaScript 1.1 |
RegExp Object | Implemented in JavaScript 1.2 |
String Object | Implemented in JavaScript 1.0 |
sun | Implemented in JavaScript 1.1 |
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Javascript Array Objects - Properties and Methods
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JavaScript: Tips of the Day
How to insert an item into an array at a specific index (JavaScript)?
What you want is the splice function on the native array object.
arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:
var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());
Ref: https://bit.ly/2BXbp04
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