JAVASCRIPT CODE THAT IS SELDOM USED/HARD TO REMEMBER.
SEE ALSO HTML.txt

JMOL:
unchangedScriptToJmol(spt) = runBareSpt(spt);

count of residues found {[ALA] and selected}.groupindex.pivot.keys.count

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typeof X (Jmol: x.type) array: object.

substr(start, length)
substring(start, [stop_index]) // does not include stop character

x = x.replace(/mn/ig, "xy");

// join arrays
array3 = array1.concat(array2) must be assigned!
array.sort() no need to assign.

JSON.stringify() used in jcontrol.js

alphanummeric sort jcontrol.js
    // Alphanumeric sort. Code from:
    // https://stackoverflow.com/questions/4340227/sort-mixed-alpha-numeric-array
    findChainList.sort(new Intl.Collator('en',{numeric:true, sensitivity:'accent'}).
		sensitivity can be "case" but still sorts ..J1,j1,K1,k1,...