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javascript Programming Glossary: a.length

How to merge two arrays in Javascript

http://stackoverflow.com/questions/1584370/how-to-merge-two-arrays-in-javascript

function var a this.concat for var i 0 i a.length i for var j i 1 j a.length j if a i a j a.splice j 1 return.. var a this.concat for var i 0 i a.length i for var j i 1 j a.length j if a i a j a.splice j 1 return a Then to use it var array1.. arrayUnique array var a array.concat for var i 0 i a.length i for var j i 1 j a.length j if a i a j a.splice j 1 return..

Simplest code for array intersection in javascript

http://stackoverflow.com/questions/1885557/simplest-code-for-array-intersection-in-javascript

be dumped. Should have O n operations where n is n MIN a.length b.length function intersection_destructive a b var result new.. intersection_destructive a b var result new Array while a.length 0 && b.length 0 if a 0 b 0 a.shift else if a 0 b 0 b.shift else.. sorted NOTES Should have O n operations where n is n MIN a.length b.length function intersect_safe a b var ai 0 bi 0 var result..

Repeat String - Javascript

http://stackoverflow.com/questions/202605/repeat-string-javascript

is my best shot so far function repeat s n var a while a.length n a.push s return a.join '' javascript string share improve..

array.contains(obj) in JavaScript

http://stackoverflow.com/questions/237104/array-containsobj-in-javascript

the only way I know to do it contains a obj for var i 0 i a.length i if a i obj return true return false Is there a better and..

JavaScript for…in vs for

http://stackoverflow.com/questions/242841/javascript-for-in-vs-for

best understood. An array is iterated using for var i 0 i a.length i do stuff with a i An object being used as an associative array..

Remove item from array by value

http://stackoverflow.com/questions/3954438/remove-item-from-array-by-value

Array.prototype.remove function var what a arguments L a.length ax while L this.length what a L while ax this.indexOf what 1.. it a global function removeA arr var what a arguments L a.length ax while L 1 arr.length what a L while ax arr.indexOf what 1..

Javascript equivalent of Python's zip function

http://stackoverflow.com/questions/4856717/javascript-equivalent-of-pythons-zip-function

var shortest args.length 0 args.reduce function a b return a.length b.length a b return shortest.map function _ i return args.map.. arguments var longest args.reduce function a b return a.length b.length a b return longest.map function _ i return args.map..

Why is using “for…in” with array iteration such a bad idea?

http://stackoverflow.com/questions/500504/why-is-using-for-in-with-array-iteration-such-a-bad-idea

legal JavaScript that resizes the array. for var i 0 i a.length i Iterates over numeric indexes from 0 to 5 as everyone expects...

Accessing nested JavaScript objects with string key

http://stackoverflow.com/questions/6491463/accessing-nested-javascript-objects-with-string-key

^ . '' strip a leading dot var a s.split '.' while a.length var n a.shift if n in o o o n else return return o Usage Object.byString..

For each in an array. How to do that in JavaScript?

http://stackoverflow.com/questions/9329446/for-each-in-an-array-how-to-do-that-in-javascript

ways are the best var index var a a b c for index 0 index a.length index console.log a index 3. Use for in correctly You'll get..

How to empty an array in JavaScript?

http://stackoverflow.com/questions/1232040/how-to-empty-an-array-in-javascript

I don't know of any . Using .splice as in A.splice 0 A.length will work but it's not very efficient because the .splice function.. So the preferred way to clear an existing array is A.length 0 Matthew Crumley's answer to this question is probably the..

Export javascript data to CSV file without server interaction

http://stackoverflow.com/questions/17836273/export-javascript-data-to-csv-file-without-server-interaction

j 1 j 10 j A.push j Math.sqrt j var csvRows for var i 0 l A.length i l i csvRows.push A i .join ' ' unquoted CSV row var csvString.. j 1 j 10 j A.push j Math.sqrt j var csvRows for var i 0 l A.length i l i csvRows.push A i .join ' ' var csvString csvRows.join..

Find the longest common starting substring in a set of strings

http://stackoverflow.com/questions/1916218/find-the-longest-common-starting-substring-in-a-set-of-strings

array var A array.slice 0 .sort word1 A 0 word2 A A.length 1 i 0 while word1.charAt i word2.charAt i i return word1.substring..

List of All Background Images in DOM

http://stackoverflow.com/questions/2430503/list-of-all-background-images-in-dom

B A document.getElementsByTagName ' ' A B.slice.call A 0 A.length while A.length url document.deepCss A.shift 'background image'.. ' ' A B.slice.call A 0 A.length while A.length url document.deepCss A.shift 'background image' if url url url..

jQuery function to get all unique elements from an array?

http://stackoverflow.com/questions/5381621/jquery-function-to-get-all-unique-elements-from-an-array