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ie5.js

Uploaded on Jan 09 2010 23:16 by abhinav147

// +----------------------------------------------------------------+
// | Array functions that are missing in IE 5.0 |
// | Author: Cezary Tomczak [www.gosu.pl] |
// | Free for any use as long as all copyright messages are intact. |
// +----------------------------------------------------------------+

// Removes the last element from an array and returns that element.
if (!Array.prototype.pop) {
Array.prototype.pop = function() {
var last;
if (this.length) {
last = this[this.length - 1];
this.length -= 1;
}
return last;
};
}

// Adds one or more elements to the end of an array and returns the new length of the array.
if (!Array.prototype.push) {
Array.prototype.push = function() {
for (var i = 0; i < arguments.length; ++i) {
this[this.length] = arguments[i];
}
return this.length;
};
}

// Removes the first element from an array and returns that element.
if (!Array.prototype.shift) {
Array.prototype.shift = function() {
var first;
if (this.length) {
first = this[0];
for (var i = 0; i < this.length - 1; ++i) {
this[i] = this[i + 1];
}
this.length -= 1;
}
return first;
};
}

// Adds one or more elements to the front of an array and returns the new length of the array.
if (!Array.prototype.unshift) {
Array.prototype.unshift = function() {
if (arguments.length) {
var i, len = arguments.length;
for (i = this.length + len - 1; i >= len; --i) {
this[i] = this[i - len];
}
for (i = 0; i < len; ++i) {
this[i] = arguments[i];
}
}
return this.length;
};
}

// Adds and/or removes elements from an array.
if (!Array.prototype.splice) {
Array.prototype.splice = function(index, howMany) {
var elements = [], removed = [], i;
for (i = 2; i < arguments.length; ++i) {
elements.push(arguments[i]);
}
for (i = index; (i < index + howMany) && (i < this.length); ++i) {
removed.push(this[i]);
}
for (i = index + howMany; i < this.length; ++i) {
this[i - howMany] = this[i];
}
this.length -= removed.length;
for (i = this.length + elements.length - 1; i >= index + elements.length; --i) {
this[i] = this[i - elements.length];
}
for (i = 0; i < elements.length; ++i) {
this[index + i] = elements[i];
}
return removed;
};
}

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