47 lines
888 B
47 lines
888 B
13 years ago
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// http://javascript.about.com/library/blshuffle.htm
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Array.prototype.shuffle = function()
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{
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var s = [];
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while (this.length) s.push(this.splice(Math.random() * this.length, 1));
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while (s.length) this.push(s.pop());
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return this;
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};
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Array.prototype.indexOf = function( element )
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{
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for( var i in this )
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{
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if( this[i] == element )
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return i;
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}
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return -1;
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};
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String.prototype.copy = function()
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{
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return this.substring( 0, this.length );
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};
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String.prototype.trim = function( ext )
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{
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var chars = [
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" ", "\t", "\n", "\r"
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];
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var s = this.copy();
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if( arguments.length > 0 ){
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for( var i in ext ){
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chars.push( ext[i] );
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}
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}
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while( chars.indexOf( s.charAt( 0 ) ) != -1 ){
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s = s.substring( 1, s.length );
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}
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while( chars.indexOf( s.charAt( s.length-1 ) ) != -1 ){
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s = s.substring( 0, s.length-1 );
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}
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return s;
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};
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