annotate src/site.js @ 7:0472897e790d

add javascript
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 23 Jun 2022 23:38:03 -0600
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children 94e26bffd4fb
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0472897e790d add javascript
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1
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2 function ajax(url,postData) {
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3 let request = new XMLHttpRequest();
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4 let method = postData ? 'POST' : 'GET';
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5 request.open( method, url );
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6 if( postData )
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7 request.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
0472897e790d add javascript
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8 request.onload = function() {
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9 if( request.status !== 200 ) {
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10 window.console && console.log( 'ajax failed: ' + request.status );
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11 if( request.responseText )
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12 document.write('<pre>'+request.responseText+'</pre>');
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13 return;
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14 }
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15 eval( request.responseText );
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16 };
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17 request.send(postData);
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18 }
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19
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20 window.onerror = function(msg, url, line, col, error) {
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21 if (!url)
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22 return;
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23 let err = msg;
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24 err += '\nurl = ' + url;
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25 if (url != window.location)
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26 err += '\npage = ' + window.location;
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27 err += '\nline = '+line;
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28 if (col)
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29 err += '\ncolumn = ' + col;
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30 if (error && error.stack)
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31 err += '\nstack = ' + error.stack;
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32 ajax( '/error_log.js', 'err='+encodeURIComponent(err) );
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33 };