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Ref #14313: NaN detection. Close gh-1352.

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This commit is contained in:
Richard Gibson 2013-09-05 14:04:11 -04:00
parent 3a552cdfa7
commit 0bc0a69026
2 changed files with 7 additions and 4 deletions
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7
src/core.js
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@ -224,7 +224,10 @@ jQuery.extend({
}, },
isNumeric: function( obj ) { isNumeric: function( obj ) {
return !isNaN( parseFloat(obj) ) && isFinite( obj ); // parseFloat NaNs numeric-cast false positives (null|true|false|"")
// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
// subtraction forces infinities to NaN
return obj - parseFloat( obj ) >= 0;
}, },
isEmptyObject: function( obj ) { isEmptyObject: function( obj ) {
@ -426,7 +429,7 @@ jQuery.extend({
} }
// Support: IE<9 // Support: IE<9
// Workaround non-numeric length overrides of otherwise arraylike objects (e.g., NodeLists) // Workaround casting of .length to NaN on otherwise arraylike objects (e.g., NodeLists)
if ( len !== len ) { if ( len !== len ) {
while ( second[j] !== undefined ) { while ( second[j] !== undefined ) {
first[ i++ ] = second[ j++ ]; first[ i++ ] = second[ j++ ];

4
src/css.js
View File

@ -272,8 +272,8 @@ jQuery.extend({
type = "number"; type = "number";
} }
// Make sure that NaN and null values aren't set. See: #7116 // Make sure that null and NaN values aren't set. See: #7116
if ( value == null || type === "number" && isNaN( value ) ) { if ( value == null || value !== value ) {
return; return;
} }