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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
...s to be an open issue (as of Jan 2011).
See also: Problems with jQuery getJSON using local files in Chrome
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What is the difference between RegExp’s exec() function and String’s match() function?
...the g flag
And .match() without the g flag is equivalent to .exec():
e1=JSON.stringify(str.match(/nop/))===JSON.stringify(/nop/.exec(str)); //true
//e2 ... e4 //true
e5=JSON.stringify(str.match(/(ab)a/))===JSON.stringify(/(ab)a/.exec(str)); //true
The .exec() function regexp.exec(str) will do...
Command to remove all npm modules globally?
...TY errors when running npm install again. I had to delete my package-lock.json file as well.
– ToastyMallows
Apr 25 '18 at 16:00
1
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What character encoding should I use for a HTTP header?
...ecial chars like ✰ (Which is not ASCII)
Tip: you can encode anything in JSON.
Edit: may not be obvious at first, the character encoding defined in the header only applies for the response body, not for the header itself. (As it would cause a chicken-&-egg problem.)
I'd like to sum up all ...
地图组件做App到底怎么选？我踩完6个坑，帮你总结了这份横评 - App应用开发...
... | AI2内置的导航封装
F. 手动Web API | 自己请求高德API解析JSON
第一关：出图速度——谁能最快让地图显示出来？
方案A是绝对的王者。 拖一个Map组件到Screen，设置宽高充满，保存，连手机，地图就出来了。中文网版本默认接...
assign multiple variables to the same value in Javascript
...eRight,
mouseDown, touchDown] = Array(6).fill(false);
console.log(JSON.stringify({
moveUp, moveDown,
moveLeft, moveRight,
mouseDown, touchDown
}, null, ' '));
// NOTE: If you want to do this with objects, you would be safer doing this
let [obj1, obj2, obj3] = Array(3).f...
Typescript: difference between String and string
... setData(key: String = ``, data: object) {
sessionStorage.setItem(key, JSON.stringify(data));
}
getData(key: String = ``) {
const obj = JSON.parse(sessionStorage.getItem(key));
}
}
string primitive
// ok
class SVGStorageUtils {
store: object;
constructor(store: object) {
th...
What Are the Differences Between PSR-0 and PSR-4?
... see the namespaces and the directories that they are mapped to.
composer.json
"autoload": {
"psr-0": {
"Book\\": "src/",
"Vehicle\\": "src/"
}
}
Looking for Book\History\UnitedStates in src/Book/History/UnitedStates.php
Looking for Vehicle\Air\Wings\...
Preserve line breaks in angularjs
...lt;pre> wrapper will print text with \n as text
also if you print the json, for better look use json filter, like:
<div ng-repeat="item in items">
<pre>{{item.description|json}}</pre>
</div>
Demo
I agree with @Paul Weber that white-space: pre-wrap; is better appr...
Ways to implement data versioning in MongoDB
...ame time.
UPDATE: 2015-10
It looks like there is now a spec for handling JSON diffs. This seems like a more robust way to store the diffs / changes.
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