iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-24 18:11:38 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #1608 from venegu/master

Browse Source 
[javascript/en] Adding modulo division
This commit is contained in:
Adam Bard 2015-10-18 11:54:59 +08:00
commit e34123e5df
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
javascript.html.markdown
View File

@ -54,6 +54,11 @@ doStuff()
// Including uneven division. // Including uneven division.
5 / 2; // = 2.5 5 / 2; // = 2.5
// And modulo division.
10 % 2; // = 0
30 % 4; // = 2
18.5 % 7; // = 4.5
// Bitwise operations also work; when you perform a bitwise operation your float // Bitwise operations also work; when you perform a bitwise operation your float
// is converted to a signed int *up to* 32 bits. // is converted to a signed int *up to* 32 bits.
1 << 2; // = 4 1 << 2; // = 4
@ -104,7 +109,7 @@ null == undefined; // = true
// ...unless you use === // ...unless you use ===
"5" === 5; // = false "5" === 5; // = false
null === undefined; // = false null === undefined; // = false
// ...which can result in some weird behaviour... // ...which can result in some weird behaviour...
13 + !0; // 14 13 + !0; // 14
@ -220,15 +225,15 @@ for (var i = 0; i < 5; i++){
//The For/In statement loops iterates over every property across the entire prototype chain //The For/In statement loops iterates over every property across the entire prototype chain
var description = ""; var description = "";
var person = {fname:"Paul", lname:"Ken", age:18}; var person = {fname:"Paul", lname:"Ken", age:18};
for (var x in person){ for (var x in person){
description += person[x] + " "; description += person[x] + " ";
} }
//If only want to consider properties attached to the object itself, //If only want to consider properties attached to the object itself,
//and not its prototypes use hasOwnProperty() check //and not its prototypes use hasOwnProperty() check
var description = ""; var description = "";
var person = {fname:"Paul", lname:"Ken", age:18}; var person = {fname:"Paul", lname:"Ken", age:18};
for (var x in person){ for (var x in person){
if (person.hasOwnProperty(x)){ if (person.hasOwnProperty(x)){
description += person[x] + " "; description += person[x] + " ";