大约有 40,000 项符合查询结果（耗时：0.0392秒） [XML]
Strangest language feature
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JavaScript truth table:
'' == '0' // false
0 == '' // true
0 == '0' // true
false == 'false' // false
false == '0' // true
false == undefined /...
Build a Basic Python Iterator
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Iterator objects in python conform to the iterator protocol, which basically means they provide two methods: __iter__() and __next__().
The __iter__ returns the iterator object and is implicitly called
at the start of loops.
The __next__() method returns the next value and is implicitly cal...
Do I need to heartbeat to keep a TCP connection open?
...e (such as a firewall), you may need keepalives in order to keep the state table entry from expiring.
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Is there a printf converter to print in binary format?
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You could use a small table to improve speed1. Similar techniques are useful in the embedded world, for example, to invert a byte:
const char *bit_rep[16] = {
[ 0] = "0000", [ 1] = "0001", [ 2] = "0010", [ 3] = "0011",
[ 4] = "0100", [ 5]...
How to select following sibling/xml tag using xpath
...eir HTML is organized like below. All of the data in their specifications table is ' desc ' while the titles of each section are in ' name. ' Below are two examples of data from Newegg pages.
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GCC -g vs -g3 GDB Flag: What is the Difference?
...includes descriptions of functions and external variables, and line number tables, but no information about local variables.
Level 3 includes extra information, such as all the macro definitions present in the program. Some debuggers support macro expansion when you use -g3.
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How is the 'use strict' statement interpreted in Node.js? [duplicate]
...trict mode support in browsers
Strict mode is coming to town
Compatibility table for strict mode
Stack Overflow questions: what does 'use strict' do in JavaScript & what is the reasoning behind it
ECMAScript 6:
ECMAScript 6 Code & strict mode. Following is brief from the specification:
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What's the difference between $evalAsync and $timeout in AngularJS?
... is needed if I need to access some DOM attribute. Let's say if I have <table width="{{x}}"> Doesn't ng-bind's watch function update the dom attribute in the memory, I understand it will not have a chance to repaint the view until digest cycle exits.
– Sridhar Chidurala
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What do all of Scala's symbolic operators mean?
...se of teaching, into four categories:
Keywords/reserved symbols
Automatically imported methods
Common methods
Syntactic sugars/composition
It is fortunate, then, that most categories are represented in the question:
-> // Automatically imported method
||= // Syntactic sugar
++= // Syn...
How to align a to the middle (horizontally/width) of the page [duplicate]
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<div></div>
div {
display: table;
margin-right: auto;
margin-left: auto;
}
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