Sass:打印到终端 [英] Sass: print to terminal
问题描述
有没有办法让Sass打印一个变量到终端?
Is there a way to have Sass print out a variable to the terminal?
推荐答案
Sass 3.3及更早版本
有两个与错误相关的指令:
Sass 3.3 and older
There are 2 error related directives:
@debug指令会将SassScript表达式的值标准错误输出流。
The @debug directive prints the value of a SassScript expression to the standard error output stream.
@debug 10em + 12em;
输出:
Line 1 DEBUG: 22em
@warn指令会输出值的SassScript表达式转换为标准错误输出流。这对于需要警告用户废弃或从小的mixin使用错误中恢复的库非常有用。
The @warn directive prints the value of a SassScript expression to the standard error output stream. It's useful for libraries that need to warn users of deprecations or recovering from minor mixin usage mistakes.
@warn 'This is a warning';
Sass 3.4及更新版本
@error指令将SassScript表达式的值作为致命错误,包括一个很好的堆栈跟踪。它对于验证mixins和函数的参数很有用。例如:
The @error directive throws the value of a SassScript expression as a fatal error, including a nice stack trace. It’s useful for validating arguments to mixins and functions. For example:
@error 'This is an error';
.foo {
background: red;
}
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