xsheetjs/bits/20_jsutils.js
SheetJS 009946339c version bump 0.7.5: more performance
- eliminated functional constructs in hot functions
- format try-catch block extracted into new function
- cpexcel + codepage updated to 1.2.0
- more efficient (and correct) clean implementation of RGB/HSL/tint algorithms
- xlsx binary --all option enables every extra formatting and saving option
- column widths parsed and saved (requires cellStyles:true)
2014-06-02 01:19:07 -04:00

22 lines
609 B
JavaScript

function isval(x) { return typeof x !== "undefined" && x !== null; }
function keys(o) { return Object.keys(o).filter(function(x) { return o.hasOwnProperty(x); }); }
function evert(obj, arr) {
var o = {};
keys(obj).forEach(function(k) {
if(!obj.hasOwnProperty(k)) return;
if(arr && typeof arr === "string") o[obj[k][arr]] = k;
if(!arr) o[obj[k]] = k;
else (o[obj[k]]=o[obj[k]]||[]).push(k);
});
return o;
}
/* TODO: date1904 logic */
function datenum(v, date1904) {
if(date1904) v+=1462;
var epoch = Date.parse(v);
return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}