How to sort arrays in random order in JavaScript

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Example

Var points = [40,100,1,5,25,10]

Points.sort (function (a, b) {return 0.5-Math.random ()})

Find the highest (or lowest) array value

JavaScript does not provide a built-in function to find the largest or smallest array values in an array.

However, after sorting the array, you can use the index to get the highest or lowest value.

Sort in ascending order:

Example

Var points = [40,100,1,5,25,10]

Points.sort (function (a, b) {return a-b})

/ / now points [0] contains the lowest value

/ / and points [points.length-1] contains the highest value

Sort in descending order:

Example

Var points = [40,100,1,5,25,10]

Points.sort (function (a, b) {return b-a})

/ / now points [0] contains the highest value

/ / and points [points.length-1] contains the lowest value

If you only need to find the highest or lowest value, sorting the entire array is extremely inefficient.

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