¡@
javascript Programming Glossary: equalityObject comparison in JavaScript [duplicate] http://stackoverflow.com/questions/1068834/object-comparison-in-javascript duplicate Possible Duplicate How do you determine equality for two JavaScript objects What is the best way to compare Objects..
How do you determine equality for two JavaScript objects? http://stackoverflow.com/questions/201183/how-do-you-determine-equality-for-two-javascript-objects do you determine equality for two JavaScript objects A strict equality operator will.. determine equality for two JavaScript objects A strict equality operator will tell you if two object types are equal however.. each would all be required to have a means of determining equality. Further complicating things is that in Javascript the distinction..
How can I convert a string to boolean in JavaScript? http://stackoverflow.com/questions/263965/how-can-i-convert-a-string-to-boolean-in-javascript the compared variables have different types instead of the equality operator which does var isTrueSet myValue 'true' share improve..
How to determine if variable is 'undefined' or 'null' http://stackoverflow.com/questions/2647867/how-to-determine-if-variable-is-undefined-or-null variable_here 'undefined' your code here. Using strict equality operator above is good idea there because in JS you can name..
Why does typeof NaN return 'number'? http://stackoverflow.com/questions/2801601/why-does-typeof-nan-return-number signal an invalid exception for such comparisons. The equality and inequality predicates are non signaling so x x returning.. invalid exception for such comparisons. The equality and inequality predicates are non signaling so x x returning false can be used..
how to check javascript array equals? http://stackoverflow.com/questions/3115982/how-to-check-javascript-array-equals While array1 array2 doesn't seem to work object identity equality and appear to at least in node uses V8 node v v0.4.0 node 1..
Does it matter which equals operator (== vs ===) I use in JavaScript comparisons? http://stackoverflow.com/questions/359494/does-it-matter-which-equals-operator-vs-i-use-in-javascript-comparisons small performance gain over javascript operators equality equality operator identity operator share improve this question.. small performance gain over javascript operators equality equality operator identity operator share improve this question The.. question The identity operator behaves identically to the equality operator except no type conversion is done and the types must..
http://stackoverflow.com/questions/368280/javascript-hashmap-equivalent looks that string up without hashing it in hash . Object equality is also not checked if two different objects have the same string..
Difference between == and === in JavaScript [duplicate] http://stackoverflow.com/questions/523643/difference-between-and-in-javascript there more such operators javascript comparison operators equality operator identity operator share improve this question and.. operators JavaScript has both strict and type converting equality comparison. For strict equality the objects being compared must.. strict and type converting equality comparison. For strict equality the objects being compared must have the same type and Two strings..
Javascript: undefined !== undefined? http://stackoverflow.com/questions/776950/javascript-undefined-undefined 'object'. I worked around the problem by replacing strict equality with regular equality in two Facebook functions FB.Sys.isUndefined.. the problem by replacing strict equality with regular equality in two Facebook functions FB.Sys.isUndefined function o return..
Why does an unexecuted eval have an effect on behavior in some browsers? http://stackoverflow.com/questions/11939736/why-does-an-unexecuted-eval-have-an-effect-on-behavior-in-some-browsers 0 t12.arguments 0 return 1 eval console.log console.log Equality tests console.log t1 'original' t2 'original' t3 'original'..
Why `null >= 0 && null <= 0` but not `null == 0`? http://stackoverflow.com/questions/2910495/why-null-0-null-0-but-not-null-0
Conflicting boolean values of an empty JavaScript array http://stackoverflow.com/questions/4226101/conflicting-boolean-values-of-an-empty-javascript-array are converted to Number the steps taken on the Abstract Equality Comparison Algorithm would be object boolean object number string..
http://stackoverflow.com/questions/6031372/undefined-and-null make undefined null false They are not equal so the Strict Equality Comparison Algorithm considers them to be false. Is there any..
In Javascript, <int-value> == “<int-value>” evaluates to true. Why is it so? http://stackoverflow.com/questions/664886/in-javascript-int-value-int-value-evaluates-to-true-why-is-it-so clearly defined in the ecma 262 spec 11.9.3 The Abstract Equality Comparison Algorithm The comparison x y where x and y are values..
Why is undefined == undefined but NaN != NaN? http://stackoverflow.com/questions/7178175/why-is-undefined-undefined-but-nan-nan Because that's how it is defined in both the Abstract Equality Comparison Algorithm and the Strict Equality Comparison Algorithm.. the Abstract Equality Comparison Algorithm and the Strict Equality Comparison Algorithm . If either operand to or is NaN it returns..
http://stackoverflow.com/questions/7223359/are-0-and-0-the-same is explicitly defined in section 11.9.6 the Strict Equality Comparison Algorithm emphasis partly mine The comparison x y..
JavaScript Date Comparisons Don't Equal http://stackoverflow.com/questions/7244513/javascript-date-comparisons-dont-equal have two dates in JavaScript both set to the same value... Equality Testing fails on but and evaluate true. Below is the code I..
Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') http://stackoverflow.com/questions/7496727/why-does-0-a-b-behave-different-than-0-true-a-b this in the specification section 11.9.3 The Abstract Equality Comparison Algorithm . The operands are denoted as x and y x..
Why is 0 == “” true in JavaScript http://stackoverflow.com/questions/7605011/why-is-0-true-in-javascript Number 0 Number '' which results in 0 0 From the Abstract Equality Comparison Algorithm number 4 If Type x is Number and Type y..
JavaScript Date Object Comparison http://stackoverflow.com/questions/7606798/javascript-date-object-comparison true Oh a reference to the spec §11.9.3 The Abstract Equality Comparison Algorithm which basically says when comparing objects..
What does this symbol mean in JavaScript? [closed] http://stackoverflow.com/questions/9549780/what-does-this-symbol-mean-in-javascript this question MDN reference on operators The List Equality Operator JavaScript vs Does it matter which equal operator I.. int value int value evaluates to true. Why is it so Equality Operator JavaScript vs Does it matter which equal operator I..
|