var oldInit = jQuery.fn.init,
oldIsNumeric = jQuery.isNumeric,
oldFind = jQuery.find,
rattrHashTest = /\[(\s*[-\w]+\s*)([~|^$*]?=)\s*([-\w#]*?#[-\w#]*)\s*\]/,
rattrHashGlob = /\[(\s*[-\w]+\s*)([~|^$*]?=)\s*([-\w#]*?#[-\w#]*)\s*\]/g;
jQuery.fn.init = function( arg1 ) {
var args = Array.prototype.slice.call( arguments );
if ( typeof arg1 === "string" && arg1 === "#" ) {
// JQuery( "#" ) is a bogus ID selector, but it returned an empty set before jQuery 3.0
migrateWarn( "jQuery( '#' ) is not a valid selector" );
args[ 0 ] = [];
}
return oldInit.apply( this, args );
};
jQuery.fn.init.prototype = jQuery.fn;
jQuery.find = function( selector ) {
var args = Array.prototype.slice.call( arguments );
// Support: PhantomJS 1.x
// String#match fails to match when used with a //g RegExp, only on some strings
if ( typeof selector === "string" && rattrHashTest.test( selector ) ) {
// The nonstandard and undocumented unquoted-hash was removed in jQuery 1.12.0
// First see if qS thinks it's a valid selector, if so avoid a false positive
try {
document.querySelector( selector );
} catch ( err1 ) {
// Didn't *look* valid to qSA, warn and try quoting what we think is the value
selector = selector.replace( rattrHashGlob, function( _, attr, op, value ) {
return "[" + attr + op + "\"" + value + "\"]";
} );
// If the regexp *may* have created an invalid selector, don't update it
// Note that there may be false alarms if selector uses jQuery extensions
try {
document.querySelector( selector );
migrateWarn( "Attribute selector with '#' must be quoted: " + args[ 0 ] );
args[ 0 ] = selector;
} catch ( err2 ) {
migrateWarn( "Attribute selector with '#' was not fixed: " + args[ 0 ] );
}
}
}
return oldFind.apply( this, args );
};
// Copy properties attached to original jQuery.find method (e.g. .attr, .isXML)
var findProp;
for ( findProp in oldFind ) {
if ( Object.prototype.hasOwnProperty.call( oldFind, findProp ) ) {
jQuery.find[ findProp ] = oldFind[ findProp ];
}
}
// The number of elements contained in the matched element set
jQuery.fn.size = function() {
migrateWarn( "jQuery.fn.size() is deprecated; use the .length property" );
return this.length;
};
jQuery.parseJSON = function() {
migrateWarn( "jQuery.parseJSON is deprecated; use JSON.parse" );
return JSON.parse.apply( null, arguments );
};
jQuery.isNumeric = function( val ) {
// The jQuery 2.2.3 implementation of isNumeric
function isNumeric2( obj ) {
var realStringObj = obj && obj.toString();
return !jQuery.isArray( obj ) && ( realStringObj - parseFloat( realStringObj ) + 1 ) >= 0;
}
var newValue = oldIsNumeric( val ),
oldValue = isNumeric2( val );
if ( newValue !== oldValue ) {
migrateWarn( "jQuery.isNumeric() should not be called on constructed objects" );
}
return oldValue;
};
migrateWarnProp( jQuery, "unique", jQuery.uniqueSort,
"jQuery.unique is deprecated, use jQuery.uniqueSort" );
// Now jQuery.expr.pseudos is the standard incantation
migrateWarnProp( jQuery.expr, "filters", jQuery.expr.pseudos,
"jQuery.expr.filters is now jQuery.expr.pseudos" );
migrateWarnProp( jQuery.expr, ":", jQuery.expr.pseudos,
"jQuery.expr[\":\"] is now jQuery.expr.pseudos" );
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