sunnybob / my-note-book Goto Github PK

const count = arr.reduce((a, v) => v === 2 ? a + 1 : a, 0);
console.log(count);

keytool -genkey -v -keystore my-release-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000

MYAPP_RELEASE_STORE_FILE=my-release-key.keystore
MYAPP_RELEASE_KEY_ALIAS=my-key-alias
MYAPP_RELEASE_STORE_PASSWORD=你设置的密码
MYAPP_RELEASE_KEY_PASSWORD=你设置的密码

    ...
    signingConfigs {
        release {
            storeFile file(MYAPP_RELEASE_STORE_FILE)
            storePassword MYAPP_RELEASE_STORE_PASSWORD
            keyAlias MYAPP_RELEASE_KEY_ALIAS
            keyPassword MYAPP_RELEASE_KEY_PASSWORD
        }
    }
    ...
    buildTypes {
        release {
            minifyEnabled enableProguardInReleaseBuilds
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
            signingConfig signingConfigs.release ----->新增
        }
    }

Duplicate file error when generating apk

doLast {
    def moveFunc = { resSuffix ->
        File originalDir = file("${resourcesDir}/drawable-${resSuffix}")
        if (originalDir.exists()) {
            File destDir = file("${resourcesDir}/drawable-${resSuffix}-v4")
            ant.move(file: originalDir, tofile: destDir)
        }
    }
    moveFunc.curry("ldpi").call()
    moveFunc.curry("mdpi").call()
    moveFunc.curry("hdpi").call()
    moveFunc.curry("xhdpi").call()
    moveFunc.curry("xxhdpi").call()
    moveFunc.curry("xxxhdpi").call()
}

git checkout branch_name

git checkout -b

If -B is given, <new_branch> is created if it doesn’t exist; otherwise, it is reset.

git checkout -- files 

git checkout HEAD~ -- files 

git add .
git commit (-m "xxx")

getOneHourAgo() {
    const now = new Date();
    const start = new Date(0, 0, 0, 0, 0, 0, 0);
    const millis = now - start - 3600 * 1000;
    return new Date(0, 0, 0, 0, 0, 0, millis);
}

$plus1: 100px + 20ex; //不能换算的编译都会报错;
$plus2: 100px + 20em;
$plus3: 100px + 20rem;
.plus{
    width: $plus1 + 10px; //在变量或属性中均可做加减法运算;
}

$minus1: 100px - 20; //第二个值可不带单位；
$minus2: 100pt - 20px; //运算是从左到右，如第二个值的单位不同于第一个值的单位(pt)，
$minus3: 100px + 20cm; //将会对其进行转换(pt)后再运算；编译出来的值的单位也是(pt);
$minus4: 100rem; //可以正常编译输出;
$minus5: 100rem + 10em; //报错;--Incompatible（不相容） units: 'em' and 'rem'.);
.minus{
    width: $minus1;
    height: $minus1 + 30; //在属性还可以继续做运算；
    min-width: $minus2;
    min-height: $minus3;
    max-width: $minus4;
    max-height: $minus1 + $minus2;
}

div {
  width: 10px * 20px; //error:  isn't a valid CSS value
}

div {
  font: 20px / 2px; //原样输出到css
  font: (20px / 2px); // 10px;
}