javascript - Why can't I set "style" directly -


let's suppose have <div>. set style color:red.

<div style="color:red">text</div>

why can't set style through javascript so:

document.getelementsbytagname("div")[0].style="color:blue";

but can set property of style:

document.getelementsbytagname("div")[0].style.color="blue";

this dom model. js debug tool use? run in browser console:

document.getelementsbytagname("div")[0].style

this result:

enter image description here

so, command returned object. this:

document.getelementsbytagname("div")[0].style="color:blue";

you redefining object. not correct @ all.

that's , can't it.

if want have tool manage css properties better can use jquery: prop() function


-

Comments

Post a Comment

Popular posts from this blog

android - Automated my builds -

i have multiple app , android project want automated in build , release sequence. have ant script build , create apk of app. want have 1 script or ant file start build sequence app. maybe don't konw search, can't find easy documentation on ant. the point of use jenkins ant (or maven, i'm not sure of difference between them now) automated build sequence when people commit on project. any int appreciated maven dependencies (over ant) don't need pass around jars. recommend maven on ant day. syntax , overall process easier understand, @ end of both build tools. if able to, more recommend upgrading gradle. easy create different build types , create them ./gradlew assemble here project jake wharton can see power of gradle. there release , debug build, can make lot more if like. https://github.com/jakewharton/u2020 here android docs gradle http://tools.android.com/tech-docs/new-build-system/user-guide . if can't find looking here, check out main grad...
Read more

python - How to return the most similar word from a list of words? -

how create function returns similar word list of words, if word not same? the function should have 2 inputs: 1 word , other list. function should return word similar word. lst = ['apple','app','banana store','pear','beer'] func('apple inc.',lst) >>'apple' func('banana',lst) >>'banana store' from doing research, seems have use concepts of fuzzy string matching, nltk, , levenshtein-distance, i'm having hard time trying implement in creating function this. i should point out similar, mean characters , i'm not concerned meaning of word @ all. slow solution debugging: def func(word, lst): items = sorted((dist(word, w), w) w in lst) # print items here debugging. if not items: raise valueerror('list of words empty.') return items[0][1] or, faster , uses less memory: def func(word, lst): return min((dist(word, w), w) w in lst)[1] see https://stackover...
Read more

php - Iterate over object properties with keys from second array -

i call foreach loop on object , iterate on $this->_values , keys present in $this->_allowedfields . 1) $this->_values can contain data not $this->_allowedfields , should excluded foreach. 2) $this->_allowedfields will contain keys not in $this->_values , still need include step in foreach loop. how can achieve this? i have set class implement iterator , can call foreach loop on object's _values array, so: foreach($object $key => $value) { // stuff } solution found solution myself below when implementing iterator interface. public function rewind() { reset($this->_allowedfields); } public function current() { $key = current($this->_allowedfields); return $this->_values[$key]; } public function key() { $key = current($this->_allowedfields); return $key; } public function next() { next($this->_allowedfields); $key = current($this->_allowedfields); return $this->$this->_values[...
Read more