I have a 2.67 GHz Celeron processor, 1.21 GB of RAM on a x86 Windows XP Professional machine. My understanding is that the Android emulator should start fairly quickly on such a machine, but for me it does not. I have followed all instructions in setting up the IDE, SDKs, JDKs and such and have had some success in staring the emulator quickly but is very particulary. How can I, if possible, fix this problem?
With native JSON, there's no need to use a library, since pretty-printing is implemented natively.
ReplyDeletevar obj = {a:1, 'b':'foo', c:[false,null, {d:{e:1.3e5}}]};
var str = JSON.stringify(obj, undefined, 2); // indentation level = 2
See the MDN Docs for further details (e.g. on the second argument);
If you need syntax highlighting, you might use some regex magic like so:
function syntaxHighlight(json) {
if (typeof json != 'string') {
json = JSON.stringify(json, undefined, 2);
}
json = json.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
} else if (/null/.test(match)) {
cls = 'null';
}
return '<span class="' + cls + '">' + match + '</span>';
});
}
See in in action (jsfiddle)
Douglas Crockford's JSON in JavaScript library will pretty print JSON via the stringify method.
ReplyDeleteYou may also find the answers to this older question useful: How to pretty-print JSON script?
Pretty Diff uses a heavily modified form of js-beautify. Try it out and see if it does all that you need:
ReplyDeletehttp://prettydiff.com/